Singxer SA-1 Balanced Headphone Amp Review - Better than Jotunheim 2?

A review of the #Singxer #SA1 fully balanced headphone amp and pre-amp including #audiocomparisons with the Schiit Jotunheim 2 and Burson Audio Soloist 3XP. You can buy the SA-1 here: tinyurl.com/AposSA1 or here if your outside North America: amzn.to/2Rg5omM
Thank you to channel patron, Robert for providing the amp to the channel as a gift!!
00:00 Introduction
02:53 Design and features
07:46 Sound quality
10:22 Output impedance switch
14:27 Singxer SA-1 vs Schiit Jotunheim 2
16:49 Singxer SA-1 vs Burson Soloist 3XP
19:39 Final conclusions
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PASSION FOR SOUND GEAR LIST
(Affiliate links to Amazon and Apos Audio help to support the channel - thank you!)
Desktop Sources Playback software: Roon roonlabs.com/r/St5em2YsbUqGXc...
Primary DAC: Chord Hugo TT2 chordelectronics.co.uk/produc...
with Chord M-Scaler chordelectronics.co.uk/produc...
Secondary DAC: Schiit Bifrost 2 www.schiit.com/products/bifro...
USB cables: Curious Evolved curiouscables.com/
and AudioQuest Coffee amzn.to/3059qiA
Active Speakers:
KRK Rokit 5 G4: amzn.to/3dMG5BZ
Bang & Olufsen BeoLab 3 Speakers
Amps
Bottlehead Mainline DIY kit tube amplifier bottlehead.com/product/mainli...
Burson Soloist 3XP www.bursonaudio.com/products/...
Schiit Asgard 3: www.schiit.com/products/asgard
Headphones (that I regularly use)
Meze Audio Empyrean tinyurl.com/y6gfyquz
Focal Utopia: amzn.to/2YmO7Je
HiFiMan Sundara tinyurl.com/AposSundara
HiFiMan Deva: tinyurl.com/HFMDeva
Ollo S4X: www.groovecentral.com.au/stor...
Beyerdynamic T5 (3rd gen): amzn.to/3priR7N
Portable
Phone: Samsung Galaxy S21 Ultra amzn.to/3sY1EoJ
DAC for phone: EarMen Sparrow earmen-shop.com/products/sparrow
Digital audio player: Chord Mojo & Chord Poly amzn.to/32s0K7G
Earphones
64Audio U12t www.64audio.com/products/u12t
Audiofly AF1120 Mk2: amzn.to/2ZoTuHZ
Shozy Form 1.4 amzn.to/3cIL0Az
Tin HiFi T2 Plus amzn.to/3fqCbxu OR tinyurl.com/TinT2P
Bluetooth Headphones / Earphones
Nuraphone amzn.to/2N7G2Tu
Nuraloop amzn.to/2HKVZzi
Reviews filmed using:
Sony A7R III: amzn.to/3mnR0nS
Sony FE 24mm F/1.4: amzn.to/3kuHVIf
Blue Encore 300 mic: amzn.to/3oreKae
Scarlett 2i2 Audio Interface: amzn.to/36hRFkn
Neewer Bi-color 660 LED lights: amzn.to/2E1BNrh

[@bardenhick2121]

YES! I’ve been waiting for someone I trust to take a look at this!

[@xyanide1986]

That's one way of putting it lol, but I agree

[@PassionforSound]

Haha. Glad I've earned your trust 😉

[@davidcoons89]

@@PassionforSound I trusted you from the first time I heard your name bro

[@PassionforSound]

Thank you!

[@maxackerny7423]

Thanks for the review man!!! Have been looking forward to this amp for a while now, i guess i'll try them 😁😁

[@PassionforSound]

It's definitely worth a try, Max.

[@alexhdw]

Excellent review (as always) -great comparisons, very helpful descriptions. Thank you!

[@PassionforSound]

So glad you found it helpful, Alex!

[@dasninjastix]

Great review mate, you're really selling me on the soloist as an acquisition down the line should I clear the WAF. Keep up the fantastic content!

[@PassionforSound]

Glad you're enjoying the reviews. The Soloist is outstanding if you can make it happen. I'm yet to hear a better standalone headphone amp (which is not to say they aren't out there, just that I haven't yet heard them)

[@robertnoblitt518]

Thanks for a great review of the SA-1! I have not heard the Schiit amp, but your comparison with the Soloist is completely consistent with my experience. In my use of the SA-1, I didn't mind the placement of the gain switches and usually used low gain. The SA-1 was sitting on my desk, not in a stack, and I could tilt up the front of the unit to change the gain if needed. I also left the impedance switch on low. It's pre-outs did a great job driving my KEF LS50 powered speakers.

[@PassionforSound]

Thanks for making the review possible, Robert! Your donation to the channel is very generous and much appreciated! I've got the SA-1 driving my BeoLab 3 speakers now and it's one of the first preamps to handle them well (Asgard 3 also did ok)

[@jamescook6890]

Excited been waiting for this comparison

[@PassionforSound]

Sorry it took a little while!

[@jamescook6890]

@@PassionforSound well worth the wait stoked you prefer this to the mighty Jot 2

[@PassionforSound]

Yeah, it's a brilliant amp. The Jot's great, but this takes it up a notch

[@alan2698]

Awsome! I picked the SA1 a couple months back before people started really searching out this amp. Absolutely love it! Thing makes a great iem amp. I still use my Asgard 3 for single ended. Everything else is the SA1. BTW, the gain switches drive me crazy. Fortunately I have only needed to switch up when EQing because of some of my preamp values on some presets require me to. Highly recommend! Thank you!

[@PassionforSound]

Hi Alan, thanks for sharing your experiences with the SA-1. So glad you're enjoying it!

[@TheColorization]

Hello Alan, how would you compare the Asgard 3 to this amp ? Can you elaborate more ? Thank you

[@sainaveenbali]

waited for like almost month for this review from this channel thanks

[@PassionforSound]

Glad we got there eventually for you :)

[@sashac3323]

Another great review! 👍

[@audioaficionado9494]

Great review and detailed compare and contrast descriptions of your top 3. Still glad I ended up with the Jot 2. No equipment envy for me. This is my endgame unless I manage to aquire SOTA Stax electrostatic headphones with Stax amplifier.

[@PassionforSound]

Glad you liked it. The Jot 2 is still an amazing amp that's super punchy and fun while still being very resolving at the price. Glad you're not feeling envy as there's no need 🙂

[@mumenrider677]

Wow, I just spent the whole day browsing forums and KZbin trying to find a comparison for the SA-1 vs exactly those two amps, and I go back on yt one last time with little hope I'll find the video I really I want, but I end up finding exactly what I want freshly uploaded a few minutes ago? Wtf I'm shocked, thanks for the extremely well timed upload! Now if you could do a review of the GSX mini next that would be even more awesome!

[@robertnoblitt518]

I used to have a HeadAmp GS-X mini, at the same time that I had the SA-1 and Burson Soloist. I preferred the Soloist and SA-1 over the GS-X mini.

[@ruusta8042]

I'd love for him to be able get a GS-X Mini in!

[@PassionforSound]

I'll gladly accept a loan if anyone's got one 😉 Adam, so glad I could provide what you were looking for. It's funny how often someone asks me about a specific review just as I'm uploading it or finishing the recording. You've taken it to the next level with the details of the comparisons! 🙂

[@mumenrider677]

You're the one who took it to the next level by fulfilling my weirdly specific comparison wish 😂

[@PassionforSound]

😂😂

[@johnsoriano3812]

This is awesome! Thanks, Lachlan!

[@PassionforSound]

My pleasure John. You can thank channel patron Robert for making it possible.

[@stephenbailey9969]

Videos like this are such a useful service. Purchasing a dedicated headphone amp provided a great improvement in listening enjoyment at my house. I looked at the Burson, but could not afford that amount. (I also didn't need a pre-out to speakers or power amp.) I ended up with the Lake People G111 which is very natural sounding and powerful, running Beyerdynamic DT 880 (600 ohm) and DT 1990 (250 ohm) headphones extremely well. I had tried the Geshelli Labs Archel 2.5 pro previously, but its sound was just too sterile for my taste.

[@PassionforSound]

So glad it's helpful, Stephen! I imagine the G111 is a great amp, but I'm yet to hear one myself

[@r00s.]

Thanks for this timely video. I currently have a Jot 2 which I love, but I have one of these OTW for comparison. I have heard they are pretty similar, but I am unsure if I will be keeping both. As always, appreciate the genuine, no BS reviews! Cheers.

[@PassionforSound]

So glad I could help. Drop back and let me know what you find...

[@reeepicheep]

I’ll buy your Jot 2!

[@r00s.]

So... I ended up with both the SA-1 and the Jot 2. Like them both in different ways. Although, I have to say, I am intrigued by the prospect of selling both of these for a Burson Soloist 3XP...

[@PassionforSound]

The Soloist 3XP is like the SA-1 upgraded for clarity, space and transparency. It's a great idea IMO

[@IntuitiveReview]

thanks for this review!

[@PassionforSound]

You're welcome!

[@tillespeli7652]

Hey thanks for the review! I was wondering how does it compare to the Topping A90, do you like this one better? I also watched Currawong's review, he mentions that the Amp doesn't run at it's full potential by default, because it has a DC protection circuit which can be bypassed by opening the amp and changing position of 4 jumper pins (he explains it better than me). This apparently makes the amp really wake up. Is this something you could try and report back to us?

[@PassionforSound]

Hi Till, the jumpers are a DC protection circuit and because I use so many different DACs during testing, etc. I've been reluctant to remove the protection. Perhaps I will in the future, but I'm flat chat on other reviews. As for your question about the A90, I think the SA-1 is way better. It has a more 3D sound and better general sound quality (more refined).

[@snowrang3r657]

Another killer review. This video might blow up as this amp is currently on the hype-train ;)

[@PassionforSound]

Yeah, it was interesting to see Zeos review it recently. Glad you liked this one 🙂

[@davidcoons89]

I just had mine delivered a few days ago and I’ve been in sonic bliss since receiving it. I had nothing class A/AB of this nature until hearing this and I guess the closest thing I could compare it to would be a good tube pre but it’s different than that at the same time. Definitely enjoying it as paired primarily with Clears and HD6xx among some others. It also handles iems respectably well. Points of reference being IMR R1 Zenith, JVC HA-FW01, Sennheiser ie80s, and recently Mangird Xenns Up (which are fantastic and so musical and lovely on the SingXer! Certainly shines in balanced output whereas SE, as you’d imagine with most balanced circuit ‘budget’ amps, is not particularly spectacular or anything to write home about. But boy oh boy is it magical in full balanced class A operation!

[@PassionforSound]

So glad you're enjoying it. Thanks for sharing your experiences!

[@aceofspades6667]

Great review, this amp is the belle of the ball around the interwebz right now! My SPL Phonitor E has the gain dipswitches on the bottom as well. It's moved to the front so I can slide it forward a bit, tilt and adjust the switches but it is a PITA. I'd love to hear how the Soloist 3XP with the better "warm" op amps (vivids?) stacks up against the singxer on hard to drive planars (HE6 SEv2, Susvara, 1266 Phi TC). The A90, 789, THX stuff all fall apart with these hard to drive headphones. Those 3 are more analytical where the SA-1 has the warmer signature so interesting options.

[@PassionforSound]

Glad you liked it Ace. I'm currently working on getting a specific "hard to drive planar" review off the ground so stay tuned...

[@Alex-ne6yy]

Love your review. you recommended the bifrost 2 as a potential dac to fit the singxer well. What do you think about the Denafrips Ares II or Singxer Su-6 as a dac choice?

[@PassionforSound]

I haven't heard the SU-6, but the Ares II is a little bit too relaxed for my tastes and that's where the Bifrost 2 is my preference - it still has a good sense of space, not too edgy, but with better attack on the transients than the Ares 2

[@engolivecomau]

How does one estimate decibel accuracy? Do you put a meter between the headphones? Or is there a way to generate the figures using software based on volume output? Just wondering if there's a consistent check on how loud is too loud apart from ears which I suppose lessen in sensitivity to volume over exposure.

[@PassionforSound]

I use a miniDSP EARS rig to work it out when I'm identifying my specific listening levels. There are phone apps too, but they're not part accurate so just a general indicator. Our ears are a bad judge of "too loud" if we get there gradually so you do need to be careful

[@alexh5343]

Very nice and thorough review as usual ! I have the SA-1 mated with the Singxer SDA-6 Advanced DAC along with the Beyerdynamic T1.3 headphones. Everything gets along very well into a rich and detailed sound. It's also quite forgiving with lesser quality music. I originally picked the Singxer kit to be a "B" kit for my second setup but it became my "A" kit since it's so musical. Voices, strings and details such as clapping have a degree of realism that I had not heard before. I have a second setup comprised of Violectric V100 + Gustard A18 that is more neutral. The Violectric provides better bass control but the Singxer is more musical and provides a better degree of realism depiste being warmer and darker.

[@PassionforSound]

Thanks for sharing, Alex. Sounds like a couple of really nice setups.

[@alexh5343]

@@PassionforSound Thanks. I'm curious about the new McIntosh MHA200, hopefully you will have a chance to review it !

[@PassionforSound]

I haven't had much to do with McIntosh so hopefully...

[@michabuszynski7326]

Hello.thanks for all.your reviews, I have a question, You have mentioned that minimum 5v output from dac would enhance the sound quality for this amp. May I ask if adding a decent pre-amp would solve this "problem" with out losing warranty and making "tuning"? I'm mostly headphone listener Hifiman Arya Stelth. My Dac is Denafrips Ares 2. Thinking about Topping Pre90.

[@PassionforSound]

Hi Michal, I'm not sure what you're referring to there because increasing the voltage at the input isn't necessary. I can't think what I would have said that sounded like this - sorry.

[@Sunday_Morning570]

Great review Lachlan, how does the SA-1 compare to the SMSL HO200? Would the SA-1 be an upgrade from the HO200?

[@PassionforSound]

Sorry about the slow response. The KZbin Studio app got all messed up a while back and I keep missing comments now. The SA-1 is a significant upgrade over the HO200. If you have the chance to upgrade, I'd highly recommend it

[@terryss95]

Hi! Do you still recommend this amp or there's better options for around the same budget, give or take, these days? I'm going to buy from Europe, trying to find a great amp that will primarily drive the hd800s (but would like to avoid tubes, i love the original signature of the headphones and i'll listen mostly to classical and older recordings) and some other headphones.

[@PassionforSound]

I still think the SA-1 is a great choice. There are a couple of brands from Ukraine that are making great amps (e.g. Flux Labs), but that's difficult right now due to the war

[@johanekelof2971]

Do you have any experience with the Burson Playmate 2? I'm currently thinking of either a SA-1 with a Topping D70S dac or a Playmate 2. Would like to hear your thoughts! Current headphones are the Ananda and Focal Clear.

[@PassionforSound]

I haven't tried the Playmate 2 - sorry! I think both of your options sound like good choices, but I haven't personally tried the Playmate 2 or D70S.

[@raphaelmeillat8527]

Great review. Very detailed. 2 quick questions... Does this amp run hot after a while? And how does the 4.4mm compare with the 4-pin xlr? Thanks for doing this!

[@PassionforSound]

Hi Raphael, the amp runs warm, but I didn't notice it getting at all hot. (It's a nice temperature). I don't think I tested the 4.4 vs XLR and I haven't got the amp handy right now. There theoretically should be no difference between the balanced outputs though.

[@raphaelmeillat8527]

@@PassionforSound thanks for the quick response! Much appreciated. Indeed, both balanced output should provide same quality...

[@exodusvelo]

Great review as always. No surprise either that it is as good as its price. I have one for 2 weeks now, very happy with it, glad to hear it will improve with xlr cable.

[@PassionforSound]

Glad you liked the review and even more glad that you like your amp!

[@damgar]

Great review, I'm interested in the synergy of Arya stealth, Singxer SA-1 Class-A Headphone Amplifier and smsl do200 DAC?

[@PassionforSound]

That would be a fantastic setup! I've used the Arya with the SA-1 a bit I think. I don't think I've tried that exact combination with the DAC as well, but knowing each product well, it's a combination that I'd comfortably recommend.

[@Ray-dl5mp]

Hey, I just want to say I recently purchased this Amp, and a huge reason was your review and comments on it. I figured it's possible the burson soloist would be even more impressive, but you couldn't decide which sound signature is truly better. So based on those thoughts, and others - it seemed like this amp was doing something truly special at its price point. Got it on sale too which helps :) Thank you so much! I thought I knew what HiFi was before I tried this - I now feel like I REALLY DO, (hopefully that makes sense). This sounds incredible with HD600, Modius, and SA-1 with high gain on single ended. I haven't even tried balanced yet, but I will soon. Seems to be some disagreement on HiFi forums whether balanced or single ended is better for my headphones on this amp, but most people say balanced is the way to go including you on this amp. I can't believe how good this sounds already. I'll try to report back what I think of SE vs balanced with HD600. I can only compare it to my Magni 3+ but I really prefer the SA-1 even in SE. It's so easy to get lost in the music and hear the timbre of everything, but nothing is annoying on the treble. But it also doesn't feel soft or anything, like everything goes together (non modded version). I also don't have to EQ a low shelf like I did with the Magni 3+ to get good bass. This just sounds right with no EQ..like this was meant to be. I LOVE IT!

[@PassionforSound]

So glad you're loving it so much, Ray! In particular I'm glad that you've been able to experience what a quality, discrete design amp can sound like. It's hard to go back to basic, chip-based designs once you've heard something like the SA-1

[@Ray-dl5mp]

@@PassionforSound yes I feel like everyone should have something like this or better. This should be the baseline for hifi audio. They did an incredible job. Now I start the journey towards figuring out if I want the promised more layering sound of a multibit or r2r approach. Because even though the sound is tremendous , I do now see what you mean about everything being forward with the modius. I probably can make this better with Bifrost or better. Looking forward to it but might wait a bit. I pick up so many sounds that I didn’t hear before and it all is an emotional, great listening experience. So I don’t want to talk anyone away from the modius because it’s still great. I just look forward to a more layered sound potentially in the future.

[@PassionforSound]

Since the upgrade to Bifrost 2/64 it's a brilliant option. No need to rush to it, but it will be worthwhile when you take that next step. For now though, enjoy!

[@vibes1952]

I've had my SingXer SA1 only for a few days now. I was not a believer in burn in before but this unit changed my thoughts. Too me, better than the A90 which I've returned. The volume knob took awhile to adapt. 4 to 5 o'clock at low gain. Is there any long-term damage that can be caused by running at almost full turn? In addition, Do you know at what point the amp switches from class A to AB.. Being that noise is so low, is there any musical/ transient negatives running in high gain on this unit and just leave it. In regards to Z switch. Im finding when going to high Z you really need to bump up the volume to match low z. Since doing the volume bump, I find the Z switch a benefit. If just going to high Z without bump, it did nothing positive.

[@PassionforSound]

Hi Neil, glad you're enjoying it. Using higher volume shouldn't ever cause issues unless you're experiencing distortion in which case you'll be killing your headphones (and maybe your ears). I don't know about the A/AB question, but it's also not something I'd really bother worrying about so long as it sounds good either way (which it does). Finally, the Z switch can bring positive or negative traits depending on your setup so if you like it with it on Hi-Z then stay with it 🙂

[@Miisile]

Hi, I enjoyed your review, but I feel you missed telling us something... What headphones did you prefer on them? Which ones did you try and what did you find worked well and didn't work well? Thanks in advance.

[@PassionforSound]

Generally, most amps will be fine with any headphone (as is the case here) so if I don't specifically say anything about headphone pairings, you'll be pretty safe with anything. In some cases (e.g. Schiit Jotunheim 2 or Denafrips Artemis) I might specifically address the tuning of the amp being more coloured and then recommend certain types of headphones that I don't think will work as well, but the SA-1 is excellent in that it's pretty neutral and pretty smooth sounding so any headphone from dark/warm to analytical/bright will sound great from it. The final factor is quality and I'd normally recommend pairing amps with headphones at similar performance levels. The SA-1 is an upper mid-tier amp so I'd suggest pairing it with headphones like the Ananda, Arya, ZMF Auteur, Focal Clear, HD800S, etc.

[@saadi703]

Thanks for this review. I was waiting for this. This video made me order the Soloist 3XP for my Hifiman Susvara. Soloist appeared to be a better amp and SA-1 does not have enough power / volume for Hifiman Susvara or it barely has enough volume for some songs at almost max volume. I hope that Soloist 3XP turns out to be a better amp as compared to my Flux FA-10.

[@PassionforSound]

I haven't heard the Flux, but the Soloist is a beast. I think you'll be very happy!

[@saadi703]

@@PassionforSound I hope so :-) I bought the Soloist based on your reviews of Soloist, Jot 2 and Singxer SA-1. It looks more beautiful than the other two amps and also as compared to the amps that I own (A90 and FA-10) and I hope that it would sound beautiful as well. Feeling excited though and I can't wait for the amp to arrive. I suspect that it would be less detailed than A90 and would not be as clean however if it has smoother yet comparable level of treble detail, slightly fuller soundings mids and hard slamming bass than I would be very happy.

[@PassionforSound]

I think you're in for a nice surprise. It will comfortably beat the A90 for detail and clarity as well as being smoother. Enjoy!

[@carloscgr713]

@@saadi703 How did you find the Soloist compared to your other amps?

[@javi1981]

Hi! Great review! I have a Sennheiser HD 800 S; What do you recommend for these headphones? this Singxer amp or the Topping D90?

[@PassionforSound]

Hi Javier, glad you liked the review. I'd definitely recommend the SA-1 over the Topping. The SA-1 is the better amp overall and even though the Hi-Z switch has very minimal effect, you might find it brings a touch of extra warmth to the HD800S should you want it.

[@javi1981]

@@PassionforSound OK, thanks a lot; I love this channel!

[@2thousand639]

I love that wooden equipment rack. Where could I find that from? :)

[@PassionforSound]

It's unique, I'm afraid. I built that myself 🙂

[@ohnonate]

Thank you for this review. I was wondering if the SA1 would pair pretty well with the Denafrips Ares 2 ? Thank You

[@PassionforSound]

I think it would make a great pairing if you're already happy with the Ares 2 sound and if you're currently using a fairly neutral-smooth amp. Keep in mind that the Ares 2 has a fairly smooth sound so, depending on what you're coming from, you may want a more energetic amp, but only you will know that. For clarity, the SA-1 isn't thick or warm, just neutral and quite smooth.

[@ohnonate]

@@PassionforSound Thank you for your time and feedback

[@pocak89]

I'm thinking about the SA-1 for a while. I have L30+E30 now. Mostly listening metal, rap, eletronic music. What do you think would the SA-1 make any difference or should I let it go and be happy with my current one? Thanks!

[@tysontyson1244]

I think that you should spend more money. The more spent, the better.

[@PassionforSound]

Nice one, hottyson 😉 Hi Mark, the SA-1 will be a massive improvement over the L30 which is good, but nowhere near the level of the SA-1. I think the E30 will be good enough to get some better performance from the SA-1 too, but it will likely become your new bottleneck in terms of maximum sound quality.

[@teqai]

How did you measure those listening level decibels? 80-83 seems pretty loud to me.

[@PassionforSound]

I've used the miniDSP EARS in the past to check - basically took the headphones off my head and placed them on the EARS while running an SPL meter through REW. That would be my maximum normal level so anything from about 75-83 dB (roughly) is where I'd normally listen to be safe, but still enjoy the full dynamics

[@miker718]

Based on your reviews, I really wanted to get the Burson soloist 3xp. I contacted Burson, but they said it wouldn't work as a preamp for my powered bookshelf speakers and powered subwoofer at the same time, as there wasn't an RCA output on the back to connect to the subwoofer, only the 2 XLR's which could connect to the speakers. You had mentioned that you had used the preamp on the SA-1, and I was wondering if you had also connected a subwoofer, and if so, how did it sound? Also, do you think the SA-1 would be a good choice for my setup, and would you recommend any other amps, besides the Schiit jotunheim 2, for a speaker/subwoofer set up?

[@PassionforSound]

Hi Mike, I don't have a sub to test, but the SA-1 does have both outputs and should therefore work well with actives and sub. It's definitely my recommendation under $1000 and better than Jot 2 (which is also great)

[@miker718]

@@PassionforSound Thanks again for helping me make my next purchase decision. I think I have it down to adding the singxer sa-1, as opposed to the topping A90, to pair with my Schiit bifrost 2. Would I be better off getting the Burson Conductor 3XP? I ask, because you had highly recommended the Burson soloist 3xp (which I almost purchased), but it wouldn't work out for me because I have added a subwoofer to my system. It seems that the conductor 3xp may work because of the xlr and rca outputs on the back. I'm not sure if the amp/pre amp section on the conductor is the same that's in the soloist 3xp. Any insight would be greatly appreciated.

[@PassionforSound]

Very glad to help! The Conductor is kind of like the Composer and Soloist melted down into a single chassis, but that will mean some degree of compromise so I expect it's a good choice, but maybe not quite to the level of the Soloist. I don't believe the Conductor has the exceptional volume control circuit that provides the transparency in the Soloist so that'll be one difference. It's still a great option if it meets your needs, but the Bifrost 2 and Singxer SA-1 should be about as good and perhaps more versatile due to being separates with their own power supplies, etc.

[@joelmunoz6218]

Hello... Thanks for the review. ¿What do you think about the match between the Singxer SA-1 and the HifiMan Edition XS, and with which Dac complements them? Thanks!

[@PassionforSound]

That would be a great pairing and then the SMSL DO200 or similar would work well as a DAC. (Pretty sure you asked this question elsewhere and wanted MQA which is why I suggest the SMSL)

[@joelmunoz6218]

@@PassionforSound Ok!! Thanks a lot...

[@gabrieljung6763]

Excellent review like always! What DAC would you recommend to match the Singxer SA-1?

[@PassionforSound]

Glad you liked the review! The Bifrost 2 would be my personal choice. Something likea Qutest would also be amazing if you have the budget. The challenge with other options is that the flatter stage created by traditional delta sigma designs (AKM, ESS, etc.) will rob the SA-1 of its sense of space and layering

[@gabrieljung6763]

@@PassionforSound Thank you so much for the advice! Keep up the good work!

[@PassionforSound]

My pleasure 🙂

[@bjornpetersson6380]

Did you close the jumpers on the condensators on the device before testing? I't's a must to do it justice.

[@PassionforSound]

Hi Björn, I didn't for the testing, but I have since tried it with shunts in place and while it might make a modest improvement, not convinced that it's worthwhile removing warranty and risking damage to your products for the modest improvement I heard. It's particularly challenging with a product like this where there's a long delay between testing with and without the shunts installed so expectation and poor auditory memory (which we all suffer from) come into play.

[@mregygamer9587]

Hi I have Asgard 3 but I want to upgrade is the singxer sa1 better in terms of soundstage ?

[@PassionforSound]

That's an interesting question. I don't know that the SA-1 creates a significantly larger stage, but it is more resolving which helps to better define sounds in the stage and therefore improve imaging and separation

[@shaned7793]

I am thinking about getting this as a secondary amp for my collection. I really like the idea of my efficient headphones having some room on the volume dial. My listening is mostly in the 60's, Db wise, peaking in the low 70's.

[@PassionforSound]

This would be a great fit for that. It's a lovely amp.

[@Farazao]

I am SO happy I imported one now! I'm still waitingfor it to get here. Did you try to install the jumpers and make it dc mode? There are claims in forums that it pushes the amps capabilities even further. Thank's for the review. Great job once again!

[@PassionforSound]

Hi Victor, I've heard about that, but didn't take the time to play with it. I might do so in the future, but I also take those claims with a grain of salt because I've also heard that the Composer as preamp with Soloist as headphone power amp is meant to be better than using the Soloist's volume and that turned out to be major misinformation based on my testing. Not saying the same will be true with the SA-1, just that I'll believe it when I hear it 🙂

[@datdudeinred]

Loved comparisons especially 👏 Btw what is that wooden rack behind you? Looks killer.

[@PassionforSound]

Hi Onkar, glad the comparison was helpful! The rack is something I made myself to help me with my desk space. It's made of Oak and allows stacking the TT2/M-Scaler, Burson Soloist and then some Schiit gear (or similar) on top

[@chefsteve8381]

@@PassionforSound Next up passion for woodwork lol

[@PassionforSound]

Haha. Not likely - it's not an area of skill for me, but something I enjoy trying from time-to-time

[@datdudeinred]

@@PassionforSound I knew it was DIY. Awesome job. Never seen such craftsmanship on something diy.

[@PassionforSound]

Thanks Onkar. I put a lot of time and effort into it

[@brzozx7651]

do you recommend any dac in budget 400$ to pair with singxer sa-1?

[@PassionforSound]

I'd probably grab a Geshelli J2 or Schiit Modius

[@stevelimey]

Jot 2, singxer, burson soloist. Which of those is the best pairing for Focal clear and the hifiman Arya.

[@PassionforSound]

All three will do great, but I'd take the Soloist everytime because it's the best of them and can be altered using Burson's other op-amps. However, if you want something a little smoother and warmer out of the box, the Singxer is the next best choice.

[@Berkanann]

When you talk about the Soloist 3XP in different reviews, are you using the Burson in normal mode or 'headphone power amp mode'? I find that the 'headphone power amp mode' is quite an improvement over the normal mode, at least when it comes to technicalities like clarity, detail and dynamics.

[@PassionforSound]

Always just normal mode. I don't find the difference signficant enough to forego the convenience of volume control

[@Berkanann]

@@PassionforSound You can control the volume on the DAC. (Obviously for this mode you need to have a volume control on the DAC which not all DACs have.) Also, I think the level of improvements one might be able to hear depend on the DACs quality.

[@PassionforSound]

I tested this with the Composer and the Soloist was clearly the better volume control. With something like the TT2, it might be an improvement in power amp mode, but I'm constantly switching between DACs with and without pre-amp capabilities so it is a hassle to use power amp mode

[@antonristo1096]

Hi! Loved the review! I actually bought a Soloist 3X recently and it's great. Only complaint so far is that it doesn't have as much punch and slam as my previous amp the iFi iDSD Diablo. How would you compare the punch/slam of the Jot 2 and SA-1 to that of the Soloist 3X? Thanks!

[@PassionforSound]

I think the punch of the Jot 2 is the highest of the lot. The SA-1 and Soloist are about the same because they're both more neutral although the SA-1 is a little warmer. I'm in the process of playing with some op-amp rolling in the Soloist and have found some interesting combinations that might help. Not finished yet so I don't want to say too much until I've tried all options, but stay tuned as it might be exactly what you're looking for...

[@antonristo1096]

@@PassionforSound Thanks for the reply! Maybe I'll consider getting the Jot 2 as a secondary amp then for more punch and slam. Your op-amp rolling sounds promising though! Will be looking forward to your upcoming videos then! I'm also considering upgrading my DAC. I'm looking at the Schiit Gungnir Multibit and Denafrips Pontus II at the moment. Have you had any experience with them and how do you think they would pair up with the Soloist 3X?

[@PassionforSound]

I owned an older Gungnir MB and loved it. It had USB v5, but the original analog board IIRC. I haven't had a chance to try the Pontus yet.

[@antonristo1096]

@@PassionforSound Okay! Hope you can review the Pontus one day! It has gotten a lot of positive reviews lately. A lot of people seem to think that it has even more detail than the Chord Qutest, but with the lush and musical sound that the Ares II has with a great soundstage.

[@PassionforSound]

I do expect to review it in the future. Lockdown and COVID have made things a bit tricky

[@stevelimey]

What desktop amp pairs well with the Focal clear MG..?

[@PassionforSound]

Hi Stephen, I haven't heard the MG yet to say, but the SA-1 would be great with anything

[@jonmarinos7170]

Which of the two is better suited for metal music? Or gaming? I ordered a Jot 2 for the impact, warmth and fullness that I’ve been reading about. Is the SA-1 comparable with slam/impact? I currently have a 789 for neutral listening, and even though it is punchy, i find the guitars in metal music to be a little sterile at times and the overall mix to be a little flat. Need an amp to compliment my 789 - one with flavor, warmth and impact.

[@PassionforSound]

The Jot 2 is definitely the more foot-tapping amp and the treble has a bit more bite. The SA-1 is more refined though so it has its own benefits. As to which is better for metal and gaming, I can't really say because different people value different characteristics. The 789 is definitely a very flat sounding amp in general and can suck the life out of music. What is probably recommend to replace the 789 is the Rebel Amp. I've got the review coming very soon and it's awesome. Single ended only, but it's great.

[@jonmarinos7170]

@@PassionforSound Thanks for the reply! Looking forward to the rebel amp review!

[@PassionforSound]

Not long now... 🙂

[@ZePangsta]

Would you recommend a SA 1 or the topping a90?

[@PassionforSound]

SA-1 every time! Much more enjoyable to listen to while still remaining true to source

[@thiagotrevisandesouza6895]

I' m very curious about a review of yulong products, particulary Daart Aquila 2 that costs $ 700 and how it compares to schiit and topping products. The DA 10 was well recieved but it's discontinued.

[@PassionforSound]

I'm yet to be offered any Yulong gear for review, but I'll see what I can arrange...

[@thiagotrevisandesouza6895]

@@PassionforSound It seems to be very well constructed. Brands need to realize that it's hard for the consumer to buy a prodct whithout an independent review like yours. It's a matter of survival to actively offer the prodctus for users analysis.

[@Samuell1124]

Do you think it is on par or better than the gsx mini in terms of sound?

[@PassionforSound]

Hi Samuel, I'm yet to hear the GSX Mini - sorry

[@yoramdiamand]

Hi, in the Meze forum on head-fi people like the Jot 2 and the Burson with the Empyrean, but no one has the SA-1, would you like to say something about your idea of synergy in this case? I am listening to tubes myself :-) Best wishes y

[@PassionforSound]

Hi Yoram, I'll check it out in a moment when I'm back at my desk and let you know...

[@PassionforSound]

I'm using SA-1 now and it sounds great with the Empyreans. It's not as detailed and resolving as the Soloist, but still a great pairing. Personally, I think Empy deserves TOTL amplification to really hear it at its best, but the SA-1 is very enjoyable. (For clarity, I'm not talking about power output, just quality and transparency of the amplification)

[@yoramdiamand]

@@PassionforSound Hi, at head-fi, people talk about the Ayon HA-3 II, Feliks Audio Euforia, and the OCTAVE: V16. I have the cheapest Feliks Audio Euforia. Thank you for listening. Strange how amps keep on growing in price and capability, it seems the is no roof on it, straight to heaven. Kind regards Yoram

[@PassionforSound]

Yes, the price increases overall are a little concerning. Often the performance is improving too, but I'm not sure that the pricing always matches the performance increase. It's a tricky thing to measure

[@aditya7955]

Great review as always. How is this compared to Topping A90 for primarily listening to music

[@PassionforSound]

Thanks, Aditya. I find it much more enjoyable. The A90 is technically solid, but lacks the smoothness and layering that the SA-1 can produce and the SA-1 does so with no loss of detail or accuracy IMO

[@aditya7955]

@@PassionforSound Thanks so much for providing quality content and info

[@PassionforSound]

My pleasure!

[@aditya7955]

@@PassionforSound What Dac would you recommend pairing this with? Topping D90 / D70s / gustard x16 or something that fits better

[@PassionforSound]

I personally like the Schiit Bifrost 2. I'm not a huge fan of Topping DACs - they're fine, but a bit 2-dimensional sounding. I haven't heard the Gustard. The Geshelli Labs J2 is another great choice.

[@urbenkam]

Hi finally good to find a pro reviewer from Melbourne. I got the Sa 1 last week. I have got schiit bifrost 2 and Asgard 3(which i am selling). Pre out is going to kef lsx which is really amazing. Crisp clear sound with control deep bass. In comparison i found Asgard 3 to be little more engaging and had more energy. I was wondering if you had taken off the DC from SA 1? Would you be able to make a video to share your findings as this is a hot topic in forums atm. Thank you

[@PassionforSound]

Hi urbenkam, I have removed the DC offset (and subsequently replaced it) because I didn't find the difference significant enough to justify the potential risk (although I've not explored the risk too deeply). To me, the SA-1 sounds best in high gain mode so do try that if you haven't already and also make sure you're actually matching volumes with the Asgard 3. The Asgard is a great amp so it's not surprising that the SA-1 isn't blowing you away in comparison, but I think on high gain and with matched volumes, it should be keeping up and possibly slightly superior in some ways (detail retrieval, etc.) As for a video on the jumpers, I don't think I'll go down that path as it might be a bit niche, but let me think on it... maybe I can slip in a short video off the normal cycle of releases

[@urbenkam]

@@PassionforSound thank you for your reply. That make sense. In my humble opinion a there will be people wanting to know the way and if it is worth it. But having said that I might be looking too much in to it. It would be great if you can do a review on plex amp. I found it to be really good. Not a direct comparison to Roon but really good In it’s own . I cannot find a detailed video on it. Kamran

[@PassionforSound]

I use Plex for video, but haven't really considered it for audio. I might take a look...

[@urbenkam]

@@PassionforSound you must. They have introduced a lot of new features recently. Really good value for money considering they started with video codex. I have been using it for last 6 months now and it is really good. Especially if you want to access your private collection when not at home. Sound quality is good. I checked it with my audio-quest black. I sm getting perfect bit rate with plex app but not with plex amp.

[@ocramidajzj]

Hi, Wondering if you tried the Singxer with the Empyreans? If you did, any insight into the pairing? Please also confirm the DAC you used. Thank you!

[@PassionforSound]

I did. I used the SA-1 with the TT2 and Bifrost 2. It plays really nicely with the Empyreans, but also doesn't get the maximum performance out of them. The Empyreans can sound more resolving with a higher level amp

[@ocramidajzj]

@@PassionforSound thank you, yes also saw your response on head-fi.

[@PassionforSound]

Ah, I wondered if you were one of the posters there 🙂. Glad I could help

[@ocramidajzj]

@@PassionforSound yes and your Empyrean review was the deciding factor in my purchase, so thank you.

[@PassionforSound]

My pleasure

[@edg5367]

A Quick question. How much time do you have into the JOTUNHEIM 2 and what DAC were you using?? Iv got the JOTUNHEIM 2 being feed by a fully balanced tube DAC And to me it blows away anything I’ve heard That’s just me

[@PassionforSound]

Hi Ed, I borrowed the Jot 2 from a patron so not sure how many hours it has on it, but it's not brand new. I used the TT2 and Bifrost 2 for comparisons (always both amps with the same DAC) and the SA-1 is just better. The Jot 2 is still a brilliant amp, particularly at the price, but the SA-1 is just a bit more refined. I would be very happy to own either though so don't feel like you've got an interior amp - the Jot 2 rocks!

[@edg5367]

@@PassionforSound I didn’t like the SA1.it sounded thin to me. Like Bose speakers

[@PassionforSound]

That's really surprising. What headphones and DAC were you using?

[@edg5367]

@@PassionforSound I’m running the Cary Audio DAC 200TS now. The headphones I have are the ETHER C Flow,Aeon Flow 2,LCD X,LCD 2C,HD 600:660s,ZMF Aeolus.Verite closed IRONWOOD,Cascadia Audio Talos and the Mod House Argon 2. I’m sure I’m leaving a few out bur I’ve got a wide selection Sent from my iPad

[@PassionforSound]

I'm surprised you found the SA-1 thin sounding, but perhaps the large volume range caught you like it caught me. Either way, the Cary looks like a beast

[@Audfile]

Can you help me? I am dead set on this amp. My headphones are Beyerdynamic Dt 770Pro. Love them but I want to try a balanced cable for the AES EBU output. Can you recommend a headphone that is similar to the DT770, must be closed back, that doesn't have a permanently attached cable?

[@PassionforSound]

Hi Audfile, I don't know the DT770 well enough to recommend something that sounds exactly like it, but maybe look at the ATH-M60X from Audio Technica or Shure SRH840.

[@Audfile]

@@PassionforSound thank you!

[@Audfile]

@@PassionforSound little cheaper than I was planning. Maybe 5-6 hundred?

[@PassionforSound]

That's an area where my knowledge of good closed backs is a bit limited, Audfile. I'm thinking maybe the DT1770 Pro might be a good option if it has a detachable cable (which I believe it does). It should be an upgrade over your DT770s, but not too much of a departure from the sound you like

[@CriPPleR_HD]

I am a proud new owner of the Meze Elite (thanks to your Elden Ring video). I currently own a Topping A90 amp and a Woo Audio W6 Tube amp. My DACs are the VMV D1se(my current favorite), Denafrips Ares 2 (very close second), and Bifrost 2. What is your absolute favorite amp paring with the Meze Elite? I am thinking of pulling the trigger on this singxer. Would it be a better paring than with the A90? Thanks for all your great reviews!

[@PassionforSound]

So glad I could help you make such a great decision! The Singxer is a nice amp, but if you can go a bit higher, the Burson Soloist 3XP, Soloist GT or Sparkos Labs Aries will all give you an even better experience. My absolute top recommendation is the Soloist GT, but any of those will be great.

[@CriPPleR_HD]

@@PassionforSound After reading your reply I researched the Burson Soloist GT and it does indeed sound like my End Game amp! Must have watched your review on it at least 3 times along with others. I have the budget to purchase the Soloist 3x today, but will have to wait till the 29th to save up a little bit more if I go for the GT. Think I am going to be patient and get the GT in a couple of weeks! Can’t thank you enough for you taking the time to reply to my questions!

[@PassionforSound]

My pleasure. It will definitely be worth the wait. I've actually got an updated GT here now (the review unit was a pre-production unit) and they've improved the fan with a different Noctua model and the menu selection is no longer touchy and annoying. In short, it's close to perfect now I think

[@cisco150]

Hi guys i have the Hifiman Ananda and Dac SMSL VMV D1SE with the SP200 but looking at a different amp looking at the Topping a30pro or this Singxer-SA1. what would you think be good match i would like more bass out of my Anandas and not as harsh highs

[@PassionforSound]

I'd definitely recommend the SA-1. It will be vastly superior to the A30 and the SP200

[@cisco150]

@@PassionforSound Would you still pick the SA-1 over the JOTUNHEIM 2

[@PassionforSound]

Absolutely. Jot 2 is great, but the SA-1 is better

[@cisco150]

@Passion for Sound thanks. I am really looking to tame the Ananda in the highs and make them more bass and warmth more musical. I listen to Rap, Hip-Hop reggae, and r&b. And Spanish music. I like vocals to shine too in females or in males. Just want to make sure I pick right amp. As I'm not sure if I over did it in the Dac department with the D1SE.

[@devinmatteson]

I’ve had this amp for a couple of weeks now. Up until yesterday, I’ve left it in low gain. Upon switching to high gain, although I lost a great deal of volume control, being paired with my Focal Clear MGs, I feel that I’ve gained greater dynamics and richness, along with a slightly brighter treble. I find this weird, as I would think that by introducing a gain stage, that these would remain the same if not suffer. Is this just my ears playing tricks on me, or have you experienced the same findings?

[@PassionforSound]

Hi Devin, I think what you're hearing is the power of extra volume (like I discussed in the beginning of the review). By switching to high gain your more likely listening at slightly higher volume levels and so you're perceiving the sound differently. If you switch back to low gain and turn the volume up a bit more you should hear the same.

[@devinmatteson]

@@PassionforSound that was my initial thoughts; however, using a db meter, I’ve found that I can achieve the same level of dynamics and perceptively better slam at ~75db on high gain, where it takes getting to ~80db on low gain, to achieve.

[@PassionforSound]

Interesting! Perhaps the gain circuit is interfering with the sound slightly - I'll have to check it out

[@devinmatteson]

@@PassionforSound more times then not, I’m sure claims like this tend to result as false, as I’m sure that it could just be an error in perception on my end; however, I appreciate you taking the time to validate my claim. Thank you and keep up the good work.

[@PassionforSound]

No problems. It's a tough call because of the time required to switch over the gain, but I think you might be right. To me the sound could be a little tighter in the bass and cleaner in the treble in high gain mode. If so, that's a shame because it also reduces the usable volume range ☹️

[@ewso100]

Is it just me, or is the recording somewhat breathy, especially at the start? It would be pretty baller if you could find out a way to review Zampotech Shortest Way 51+ / Shortest way 9.

[@PassionforSound]

It's probably just my "quiet voice" because the baby is asleep in the room next door 😉 I'm interested in the SW amps too. I'll have to see if I can arrange something

[@alphaniner3770]

I have an SA-1 and I think that you nailed it here. - one thing worth mentioning is that the SA-1 takes some time to warm up.

[@PassionforSound]

Thanks for the confirmation, Alpha. I didn't notice a huge difference between cold and warm performance, but I would believe that there are improvements when at temperature - I just didn't test this specifically

[@alphaniner3770]

You're welcome! Testing cold vs warm performance is not very easy, unless you have two units or if the difference is huge. I think that it performs 'a bit' better when warmed up :o)

[@PassionforSound]

That would make sense about the degree of difference and you're right that testing that type of difference is hard.

[@alphaniner3770]

In any case thanks. It is always nice to have a positieve review of a product you own - a pleasant form of a 'posititive confirmation bias loop' :)

[@alphaniner3770]

Apparently it is possible to bypass the DC protection circuit with 4 jumpers. Could increase sound quality, I guess that's why the jumper connectors are there for in the first place. What is your take on that PFS? I will wait with testing until warranty runs out.

[@lextr3110]

any ideas how it fare against good audio gd headphone amps..?

[@PassionforSound]

Hi Lex, I can't say - sorry. I've not been super impressed with the Audio-gd gear I've tried in the past, but I can't say I've tried anything at this pricepoint or above.

[@iantetley3773]

I’m stuck between the jotunhiem 2 and the singxer which would be a better pairing with the schiit bifrost 2?

[@PassionforSound]

The Singxer SA-1 is the better amp in terms of absolute sound quality so I'd choose that, but the Jot 2 will obviously make for a neater stack.

[@iantetley3773]

@@PassionforSound lovely thanks I’ve been going over it for days I’m probably going to pull the trigger soon thanks for the reply definitely subscribing now.

[@PassionforSound]

My pleasure. Thanks for subscribing!

[@sirblew]

Thanks for another well informed and detailed review. Unfortunately, the more I watch your reviews I find digging into my pockets to find extra budget! This looks like an excellent option as a headphone amp because it has that warmth and body that I feel could counter the sharp analytical nature of the HD660S headphones. Have you heard the HD660S headphones and, if so, would you recommend the SA-1 for them? Another option is the Gustard H16 amp. Have you heard this amp and, if so, how would you compare them?

[@PassionforSound]

Sorry if I'm tempting you to spend money! 🙂🙂 As for your question, I haven't tried the HD660S, but if you're feeling that it's too analytical, the SA-1 could be a great option to tame it slightly without going too far. Unfortunately, I haven't been able to get any Gustard gear to try yet either.

[@shh532]

I have one of these on order to pair with my new Ares II and ZMF Eikons. Was considering the Burson but at half the cost it seemed more sensible. I'm interested if you think this + the A90 and some other amps are starting to outdate the THX 789. From what I've heard it definitely sounds like the newer stuff is really warping the value propositions on high end solid states.

[@PassionforSound]

I do think the A90 and SA-1 are leaving the THX 789 looking a little ordinary these days, but they're also priced quite differently - particularly the SA-1. The 789 is still an excellent entry into high-end audio, but the SA-1 is a BIG step up. The A90 is a funny one for me. It's very capable, but not particularly enjoyable whereas the SA-1 has both bases covered

[@shh532]

@@PassionforSound I'm currently using an SMSL SP200 which I think is brilliantly capable for the price too, but I'm definitely excited to see if the SA-1 will complete this setup.

[@PassionforSound]

You'll be VERY impressed with the leap in performance from the SP200. The SA-1 is miles better. Enjoy your new rig!

[@danielhipwell3607]

I am an audiophile dj, can I run my dj software (iMac) through my audio interface - through my dj mixer out of the balanced xlr main outs and into the inputs of the SA-1 ending off with plugging my Audeze LCD-2 Classic into the front of the SA-1. Reasoning, bypassing the crappy headphone amp on my dj mixer (Xone:23c). Food for thought.

[@PassionforSound]

That should work just fine and sound great!

[@danielhipwell3607]

@@PassionforSound Thanks Lachfen!

[@-Ambos-]

Do you think the RCA Input ist well done? Sound differences to the balanced Input? My Chord Qutest Just has RCA so I have to find an amp which is good for RCA

[@PassionforSound]

Hi M, I think it's fine with RCA. I can't recall what I found in my testing, but I will have mentioned it in the review I think

[@-Ambos-]

@@PassionforSound ank you so much for your help :)

[@-Ambos-]

@@PassionforSound oh and a maybe strange question: is there something wrong about using the single ended input while using the balanced output?

[@PassionforSound]

My pleasure and there's no issue using SE in and balanced out. They're quite different in how they operate so there's no need toatch them up. Balanced in is all about noise rejection. Balanced out is more about greater power and perhaps better channel separation, but definitely not noise rejection.

[@-Ambos-]

@@PassionforSound thank you again. Your explanation Males perfectly sense to me. Greetings from Germany. I enjoy you videos a lot!

[@xophere]

Clearly a dig at Schiit with two power switches! And one on the back! :)

[@PassionforSound]

Lol. Yep! 😁

[@grasshopper33xx]

I actually found the z switch to make a diff on my Hd650 and Sony ier 9 but in opposite ways. The Sony had more bass in low z and the hd650 was a bit wider sounding in high Z. Also love the volume range the sa1 has, very usable with iems

[@PassionforSound]

Hi Kristian, yes, output impedance can have different effects on different devices. It all depends on the impedance characteristics of the transducer. I agree that the volume range from the SA-1 is great for IEMs!

[@jonathankelly5997]

So you're admitting to not volume matching before you started? And how do you know you just didn't have the Singxer louder than the others in the end?

[@PassionforSound]

Hi Jonathan, I'm not sure what you mean?

[@jonathankelly5997]

@@PassionforSound You started off by NOT volume matching, which sort of says you don't know that something being louder will make it sound better than something that actually produces better sound. You said you weren't impressed by the Singer ... until you thought/noticed it wasn't as loud/loud enough. So you turned it up and it sounded better. Who'd have thought! You didn't mention anything about how you matched the volume levels, so one can only assume you didn't. Doesn't really inspire confidence in what you're doing. Sorry for being harsh, because I've liked your reviews up until this one ... but if you're representing yourself as being able to differentiate between two sounds, you should really demonstrate you know how human hearing works.

[@PassionforSound]

All of my reviewing begins with a listen to the product in isolation. That's when I was unimpressed and didn't have enough volume. When I'm running any comparisons I'm very careful to match the volumes of various devices because I understand the impact of loudness perception as I explained at the opening of the video. You're making incorrect assumptions about my testing and reviewing process. It's very important to consider a product in isolation and for relatively extended listening and not rely solely on comparisons which may reveal some important characteristics, but which will sometimes fail to reveal or mask others due to our reliance on the contrast when conducting A/B comparisons. The extended listening that I start with is where I form my initial impressions and discover usability quirks (good and bad) before refining and expanding my thoughts with select comparisons.

[@fatcuck2753]

How do these and the THX 789 sound with the Meze Empyrean?

[@PassionforSound]

Both sound great with the Empyrean because the Empy tends to work with everything, but neither amp will get the full potential from the Empy, particularly the 789.

[@fatcuck2753]

@@PassionforSound thanks for the quick response! I was looking to upgrade to the singxer from the 789 because I've been having sibilance issues with 789

[@PassionforSound]

That will be a great upgrade. I think you'll be very happy

[@SweetLead]

Zeos Pantera / Zreviews compared the GS-X Mini to the SingXer SA-1. And he said they sound the same. Definitely a must buy for me is SingXer SA-1 because I live in Europe and headamp has no resellers in Europe. If I ordered from US, I would pay extra taxes and it is too expensive for me. And I'm still saving a lot of money with that. I’m glad it sounds very similar. I was informed that SingXer SA-1 is the best solid state amp for my future sennheiser hd 800 s headphones. At first I wanted to buy a topping a90 with hd 800 s but I found out that this combination would sound too flat and sterile and it would be a boring sound in music.

[@PassionforSound]

I agree that the A90 wouldn't be a good choice. I haven't heard the GS-X Mini yet, but I doubt it really sounds the same based on other comparisons I've heard from channel patrons, etc. That said, the SA-1 is an excellent amp for the price and will pair very well with the HD800s.

[@brianisaac1804]

Do you think this Amp is better than the Topping A90, or are they close in comparison?

[@PassionforSound]

Hi Brian, I think the SA-1 is clearly superior. The A90 produces a flat soundstage without a lot of engagement to its presentation. The SA-1 does everything better IMO

[@brianisaac1804]

@@PassionforSound Thanks, I plan on buying in the next few days from Apos. I'm sending back my A90. I will use you link when I purchase. Also, does this amp pair well with the Bifrost 2?

[@PassionforSound]

Thanks so much, Brian! It's a great pair with the Bifrost 2 and is exactly how I generally use it

[@brianisaac1804]

@@PassionforSound My only gripe, is that the Singxer doesn't come in silver, now I have to buy the Dac in black.

[@PassionforSound]

Yeah, there is that

[@Yogachara]

How does the Singxer SA-1 hold up in 2023? Any more compelling options for the price?

[@PassionforSound]

It's still an excellent amp, but if you can buy from these guys (they don't ship everywhere) then the Geshelli Labs A3 Pro is fairly impossible to beat for the price: kzbin.info/www/bejne/p3jcfZaufLWNhtEsi=_0uD8Lklr9NLTgaE

[@Yogachara]

@@PassionforSound Whoa. Was definitely not expecting that. The A3 Pro is definitely the top contender for me after watching your review.

[@PassionforSound]

Excellent! Glad I could help 🙂

[@i0001w]

What DAC you used in this comparison ?

[@PassionforSound]

Hi Muataz, I used the Hugo TT2 and also Schiit Bifrost 2

[@etin97]

@@PassionforSound how do you like those dacs for the price? I'm thinking about upgrading from an O2 dac/amp

[@PassionforSound]

I don't have a lot of experience with other DACs at the level of the TT2 so that's hard to say, but the Bifrost 2 is excellent for the money. There are some great upgrades you could make from the O2 including the Bifrost 2, Geshelli J2, SMSL SU-8s and Schiit Modius. I'd take the Bifrost 2 out if all those if you have the budget though.

[@etin97]

@@PassionforSound Thanks! Great channel, subbed.

[@PassionforSound]

Thanks Ethan!

[@fixxxer4234]

I am getting a ZMF Verite Open soon and I am torn between the 3 amps that you showed. I was thinking Jot2 before watching this video. I was thinking after such a good review I will be 100% sure but now I want the Soloist...

[@PassionforSound]

Yeah, it's always hard making a decision like that. All three amps are excellent and hard to go wrong with any of them. The Soloist is a clear step above both though and should reward you will with a headphone of the Verite's class

[@fixxxer4234]

@@PassionforSound what about DAC pairing?

[@PassionforSound]

Depending on your budget, I'd probably look at the Bifrost 2 as the best choice under $1000 USD (regardless of amp). At lower prices, any of the SMSL or Topping DACs are a solid choice. The Geshelli Labs J2 is solid too, but falls a little behind the new E50 from Topping. Above $1000, my next stop would be the Chord Qutest.

[@fixxxer4234]

@@PassionforSound with the Multibit module i guess?

[@PassionforSound]

You mean the Bifrost? The new version comes only in Multibit 🙂

[@adrianmorrish8494]

There are issues with driving power with the sa-1 though are there not caused by the hi gain being way to low, I have a dac that can outout in variable 6.7v so I could compensate but it's the only major thing putting me off compared to the Jot2, did you have issues as I am basing this bias on other reviews not personal experience.

[@PassionforSound]

I believe the SA-1 uses a different type of volume pot so you have to turn it up more than some other amps to get the same amount of output volume, but it's not a lack of power - the SA-1 can happily drive the Susvara (it's not ideal for the Susvara on terms of quality, but not lacking in power). It's actually a great design that I wish more companies would use because there's good volume range for sensitive headphones and then once you get to about 12 o'clock on the dial, the amp really opens up for the less sensitive cans.

[@adrianmorrish8494]

@@PassionforSound hmm wonder why he was talking them down as he praised them to heck and back in most other areas although he did say Jot2 had more slam but that's not everything. To be honest when I am ready for the Susvara or 6 etc I will probably be looking at a masters or some such anyway.

[@PassionforSound]

Who was the reviewer? Maybe they didn't volume match or understand the different types of volume pots available (linear vs logarithmic). I really like the Jot 2, but if you offered me the SA-1 or Jot 2 is take the SA-1 every time.

[@adrianmorrish8494]

@@PassionforSound quick question, wheen you say not ideal in terms of quality, do you mean that to really do justice to Susvara, r10 etc you really should be using a burston ot equivalent

[@PassionforSound]

Exactly, I'd personally go with something like an Arya stealth version and a really nice amp rather than the Susvara with a good, but mid-tier amp

[@jackson8jackson]

Everyone that has the SA-1, are you using mostly in high or low gain?

[@PassionforSound]

Low gain should be all you need so long as you're comfortable turning up the volume knob. The SA-1 will drive even the Susvara to decent levels on low gain.

[@jackson8jackson]

@@PassionforSound I just got mine and dynamics are fine volume wise but all my planars I have to turn up to 3:00-4:00. That's all in high gain. I'm not sure if I like that.

[@PassionforSound]

Wow. 3-4 o'clock in high gain is loud! What headphones are you driving and what's you're source (i.e. DAC)?

[@jackson8jackson]

@@PassionforSound I need to go that hi for my Sundara's and DC Aeon 2 Noire and even my Grado 325e's. Using a RME ADI-2 dac.

[@PassionforSound]

That seems way too high, Bob. Have you got the RME's output reduced? I'll double-check, but the Sundaras shouldn't need much more than half volume I'd expect

[@digitalnation2876]

THANK YOU !!! My watchlist are: Singxer SA1, Jotunheim 2, Topping A30pro,

[@PassionforSound]

You're welcome. I was expecting an A30 Pro for review, but it hasn't happened. Not sure what that's about, but hopefully will be able to share my thoughts on that in the future too

[@paullieb213]

Just want to confirm that regardless of SE or Balanced dac input the sound coming from the balanced output is running through the same balanced circuitry and hence no difference in sound quality assuming the dacs are of equal quality. People are saying if using SE input then SE output is the best option. Makes no sense to me.

[@PassionforSound]

Yes, there's a lot of misinformation about balanced and SE circuits. What you've said here is correct though in the amps that I've come across.

[@matthewhilty4209]

I would imagine the impedance switch would probably make more of a difference with IEMs than full size headphones.

[@PassionforSound]

That's true because their impedance is much lower in most cases. Unfortunately, most IEMs don't play well with high output impedance because they often have significant variations in their impedance across different frequencies due to the use of multiple drivers. You can get lucky, but it's rare to find an IEM that improves with high output impedance

[@pinoyxbox]

This paired with denafrips ares 2 and arya?

[@PassionforSound]

Similar to the Jot 2 combo (see my answer there), but the SA-1 will bring a bit more neutrality while still staying smooth and slightly warm.

[@pinoyxbox]

@@PassionforSound thank you very much for the reply. Now importing it to my place is a bit a pain in the ass 😂

[@PassionforSound]

Yeah, that can be tricky

[@pinoyxbox]

@@PassionforSound hello! After weeks of reading and watching reviews from youtube, fb groups and audio forums I finally placed an order for the singxer sa-1 😅

[@PassionforSound]

Great choice! You've probably heard about the DC offset protection bypass. I'm in the process of prepping a video to discuss the risks, how to do it and what the benefits are. Just letting you know in case you're interested

[@datdudeinred]

Moral of the story: Burson is endgame singxer is pretend game(runnerup)😉 If you want warmth - schiit>singxer/matrix audio >burson>topping/any thx amps.

[@PassionforSound]

Kind of. I don't think the SA-1 is trying to be endgame so it performs really well for where it's priced. 🙂 I've got the Matrix Mini-i Pro 3 here for review now so we'll see how it compares to the SA-1 tonally. (Obviously it's got way more features being a DAC and streamer)

[@konna200]

@@PassionforSound Nice review mate again! I have the Topping A90/D90 and Matrix mini-i Pro 3 and im going to totally get this in my chain! But im happy to see that you put it at MA to A - B for this "cheper alternative" not really but you know what i mean bc the MA have "long" history.

[@PassionforSound]

Hi Mika, glad you liked it! I don't understand what you mean by MA. Can you explain for me?

[@datdudeinred]

@@PassionforSound Yeah ofc what i meant by singxer being runner up was that for those who can't afford burson yet its basically 2nd best choice. that's it. Especially how much you loved it. And also if you don't have $1k+ headphones burson is not totally necessary. Thats all i meant. Can you get pi2aes for review? its such an upgrade over using usb would love to see your perspective especially from premium usb cables vs pi2aes.

[@konna200]

@@PassionforSound Oops, Sorry i mean Matrix Audio mini-i Pro 3 lol my bad :D You deserve so much more subs mate!

[@arrowzen7433]

I am surprised a cheap schwitch-mode PSU w. caps in the signal path outperforms the Jotunheim here…

[@PassionforSound]

There's a lot more to an amp than the power supply and SMPSs and LPSs both have their own pros and cons

[@n00buo]

I've got both and I love both. I'd choose SA-1 for D8000 Pro but then for Arya or Clear I'd go to Jotunheim 2 balanced. They're very similar but I find Jot 2 lil bit more organic and smooth. This review was really useful and anxiously awaited by many. Once again, amazing job @Passion for Sound

[@PassionforSound]

Thanks José! That's really interesting how you're allocating the amp's by headphone and makes a lot of sense based on their differences.

[@armannasr3681]

Hey Buddy, I am getting a cheap 789 for $150, and the Arya V2. What s your take on that combination? Have you listened to THX 789 + Arya?

[@n00buo]

@@armannasr3681 I consider that combo to be on the bright side, you will love it but might get harsh when listening for hours, if the DAC's on the warm side it could be an amazing pairing tho

[@g-mail4743]

Singer SA-1 is a top contender at for its price range

[@PassionforSound]

Haha. Just said exactly that on your other comment 🙂

[@puciohenzap891]

I have one problem with these amps and Chinese audio in general and that's the online community fueling the hype. All these Chinese boxes are one season wonders, than a new model comes out, gets all the hype and the previous model is suddenly 'worthless'. Same goes for the DACs, the depracation is insane. They are only good if you're not into internet, just look up the reviews on forums etc, buy and never look at these forums again :-))

[@PassionforSound]

There's a lot of truth to that, but I'm not sure if Singxer fits the same model as I don't recall seeing lots of models month-after-month like with Topping, SMSL, etc. With those brands (and the IEM ones) it's a bit overwhelming with the neverending flow of new products.

[@UntakenNick]

I really wanted the Jotunheim 2 to be better because it looks so beautiful and this one looks so boring but I guess it's the better choice. With import fees they cost the same in Europe, only that for the Singxer the price is all for the amp while for the Jotunheim 2 you're paying the same amount for a cheaper amp and €100 in taxes. If I could get the Jotunheim 2 at USA price I'd probably get that one just for the looks, counting on the differences being inaudible.

[@PassionforSound]

I like the look of Jot 2 more too, but the SA-1 is clearly better from a technical perspective IMO.

[@chamade166]

I found the SA-1 too smooth/warm with the Arya. Actually prefer the IFI Micro iDSD Black Label...more details and sparkle. It might pair better with some other very bright headphones.

[@PassionforSound]

I'm not sure if the iFi is discrete or op-amp based, but that might be a part of your preference because the SA-1 is a much smoother sounding amp than most of the op-amp based designs I've tried.

[@lextr3110]

did you compare your black label to signature?

[@chamade166]

@@lextr3110 I have the Signature coming friday so will find out. The Black Label is really good, especially with the deals on the used market…

[@shawnpwatsons1]

@@chamade166, Let me know when you get it...what you think?

[@MayTheSchwartzBeWithYou]

@@chamade166 Any updates?

[@RathOX]

*Singxer is not class A its Class AB, i feel the jot 2 just has the price to performance factor and schiits house sound is great

[@PassionforSound]

Hi RathØX, where did you see that it's AB? I took it as true from their marketing materials that it's Class A

[@RathOX]

@@PassionforSound its all over the internet the marketing is just BS :) look at headfi/ASR atc, its AB & the marketing (like for anything) catches people out

[@PassionforSound]

Gotcha. Took me a while to find it, but I got there. Still not a big deal because the reality is it sounds great. It would be good if the marketing were more transparent, but doesn't change the end result thankfully

[@RathOX]

@@PassionforSound i agree it sounds great just doesnt have that “class A warmth” like my other pure class A. Its more on the neutral /side like the GSX mini (not to say thats a bad thing) just On Shenzhen audio it drops to $520 a few times on sale & i would say thats a more appropriate price range for it. also hoping to see you review the Soncoz Headphone amp that works as a stack for the SGD1 ☺️. As always great content!

[@PassionforSound]

I keep meaning to try to get some Soncoz gear. I can't remember if I emailed them yet - some companies just don't reply

[@darthdurkelthewise320]

This amp is being hyped up currently. What they gain w/a power switch up front they lose with gain switches on the bottom. If you have multiple headphones you’re gonna be frustrated. This would be a deal breaker for me and it’s a poor design. Great review though 👍🏻

[@PassionforSound]

It's a strange decision, I agree. Glad you liked the review

[@capomover]

Let's hear it for Burson. Viva Australian audio! (Loud applause). The very curious (sorry could not resist) smarty pants white guy youtube reviewer who claims to live in Japan had to bypass the sound crippling d.c. protection circuits (and in the process void the warranty) to get what he considered to be good sound from the Singxer SA-1. Intentionally including circuitry which lessens the sound quality and putting the gain switches on the bottom while putting the much less useful impedance switches in an easy to reach area makes me wonder what they are smoking at Singxer. And, while we are at it, of all the names to choose for your brand: Singxer?

[@PassionforSound]

I agree that the Burson gear is wonderful and comfortably better than the SA-1, but I also think the DC protection thing is over-rated. I'm thinking more and more of doing a short video on it myself because I don't believe the differences are THAT big having tried it myself. The SA-1 is a really nice amp at the price. Don't forget the Soloist costs significantly more for that jump in performance

[@shaned7793]

80 to 83 Db's is very loud. Take care of your hearing.

[@PassionforSound]

I agree. I generally listen around 75dB, but sometimes go a little louder during testing. 85dB is ok for a moderate length listening session and will only cause damage after all-day exposure which I wouldn't ever do.

[@filovirus1]

I'm very tempted to cancel my Jot 2 order but that gain switch at the bottom - that's a deal-breaker for me.

[@tysontyson1244]

I usually prefer my switches on the front. But, if what he says it true, that they don't change the sound, I would want them set and forget on the bottom out of sight.

[@tysontyson1244]

The Schiit Jotenheim was on my short list. Maybe I will skip it for the Singxer SA-1. Or, maybe just straight to Burson.

[@PassionforSound]

Yeah, the bottom gain switch isn't ideal, but it's only really an issue if you have headphones with very wide-ranging power needs. Hottyson, the gain switches won't change the sound at all, but these are also different to the Z switch (Hi-Z, Lo-Z) on the front which changes output impedance with minimum effect. Not sure if you were mixing up the two.

[@filovirus1]

@@PassionforSound thanks for the reply. I switch between my headphones and IEMs quite often (I love them all!) and find myself switching gain switches almost as often so I'm not sure if Z switches for changing impedances would be enough in my use case.

[@PassionforSound]

No, Z switches will be counterproductive for IEMs. You'd probably find low gain enough for most setups though. What's your toughest headphone to drive?

[@exodusvelo]

I wanted to send you a paypal donation, but they want to match the donation in fees!!!!! to donate 5$ they want another 5$!!! To donate 1$ it costs me 2$, like you get 50% of wat I pay, LOL, wat a scammers paypal. What's the best way to donate something without fees, I want to donate to you and no one else, this is good review, should be payed.

[@PassionforSound]

Thank you! For some reason this comment missed my notifications feed. It should be possible to send money via PayPal as a gift (friends & family payments). If you're funding from a bank account, that's free. You can also use the "applause" feature within KZbin, but I've yet to try that for myself.

[@mjjm6220]

No Optical input, then I have no use for it.

[@PassionforSound]

It's an amp - amps don't ever have optical input... 🙂