Burmester 933 MK2 clone - small box of condensed fun and power!

[@mark120371]

Have you seen the new Berlin Voice 933 units. The internals layout look more like the D5pro now. I wonder what the difference is and does it have the same bass control and/or what is improved. It really looks like lite verison of the D5pro. Looks better than the D5 standard. Also you at the start of the video you mentioned that the The 933 operational amplifiers inside but when the description of it you never pointed them out. I was just wondering does it and which ones are using it and where are they placed?

[@k4syx]

Thanks!! I have that other one in Transaudio chassis in my shopping cart. It looks better internally, it's also more expensive and I am curious how does it sound. As for opamps these are used in DC servo, single (not dual!) ones and I think I've shown them in the other video on replacement and sound quality change.... They should be visible here in this vid too

[@mark120371]

@k4syx Yes when I looked at the video again I could see them. Do you think replacing stock units with discrete units would improve the sound.

[@HotSause]

True. Ive heard that very special sound totally disappear when "better" components are subbed in, especially lush "audiophile" caps. It's how the designer voices his schematic. Sometimes, simple is better, and its intended that way.

[@k4syx]

Yes, that can be the case, on the other hand very often - especially in cheap constructions - better components do improve the sound. So - no risk, no fun! :)

[@777gordini]

I don't think mucking around with any of the caps on this 933clone will reap any further benefits.. already has Wima caps in the signal path and changing the main supply caps will not change anything esp as they are new caps.. only if they are old and failing would any real benefits occur in that department.. it's extremely well sorted already.. just the ic change to a discrete single OP03 module as I mentioned on a post above is what the big improvement is and it is a good improvement.

[@daudibrahim7877]

​@@777gordini can you give a link where one can get the op03. Thanks

[@mark120371]

When I read the description on Ali, it says that the Berlin 933 can be bridged for 240w @ 4 Ohms. Can you confirm that it can be bridged or not? After seeing your A1 review (not sure how it missed it). And listen to you praise of the A1 compared to the D5 Pro , I highly concerning the A1 and 933 for my 4 way active open baffle / bass reflex towers. I am now thinking of going 2 A1 for mid-range and highs, power is not a big concern as the drivers have very good efficiency (12" Full-range/midrange 94db 1w/1m and Planar tweeter 96 1w/1m). They will be infinite baffle, tweeter dipole For mid-bass and subbass 2 of these Berlin 933. MIDBASS is 96db 1w/1m, also infinite baffle. Subs will be a bass flex enclosure tuned to 24hz. I can get all 4 for a hair more than 1 FM801. Maybe 3 Berlin 933 if they can be bridged, 2 to run the subs bridged. Also how do you think the 2860+ pre will play with these? Or would the Cary SL90 be a better match with tubes and the holographic presentation that the tubes give. What do you think. Thanks for all your input once more.

[@k4syx]

Thank you!! Burmester 933 clone cant be bridged, they tell that in sentece about the original one. There is more than a few guys now that use combination of these to drive open baffles - but usually the first choice for the bass drivers is set of TPA3255 monos as they are faster and more precise. 2860+ will work great and will give you 4 sets of outputs, and this may (or may not) be useful in your scenario. Cary SLP90 has advantage in holography, big one, but only that one - in all other regards 2860+ is equal or better. Holography with Cary is unique even for other tube preamps or amps, its very 3d! Get both and sell the one you will not be using :)

[@mark120371]

@@k4syx Great info. I was considering the TPA3255. But the 933 seems to have more control with its higher dampening factors. I also considered doing the A1 mid/tweeters and 933 mid-bass (50-150hz) and 3255 for subs, as the 3255 have the power as well and are stable at 2 ohms. Or just do the. 2 A1 and 2 set of 3255 The other thing that attracted me to the 933s was aesthetics, because with the upgraded version they look like the A1s and that makes for a very good looking amp rack also.

[@BlazSvetlic]

Thanks!

[@k4syx]

Thank you!

[@NickP333]

Yes, Mogami makes the exact cable you’re looking for. I’ve used it to make a few cables for myself and friends. Don’t remember the name of it, but it’s quality cable. Cool vid! 👍🔊😊🎶

[@k4syx]

@@NickP333 yes I have a special "cable" drawer with a few meters of Canare, Mogami, I Sommer and few others ready and waiting to be used :)

[@frankgeeraerts6243]

Mogami is great ........used also by Lundahl....... But I wouldn't buy this amp because of it's abnormal low measurements and damp damping factor unless you have those modern powerhungry and low microresolution low sensitivity speakers .OPA , ...NFB ....output transistor packaging ......industrial build , cheap wiring and connectors , all together .....a no no for me . This is an amplifier for audiophiles , not for music lovers . Instead I would buy eyes closed an Electrocompanier amplifier .. Often not told .....old WE amplifiers ( tubes ) with no NFB have distortion below 1 watt less than 0.1 %.......some even lower ....they were made for reproding music and not to please a high end marketing hype . Have a nice day Nick

[@777gordini]

Reading your posts you mention Electrocompaniet..well I have an ampliwire aw65 here and this breeze audio eats it for breakfast when it comes to producing music. As for music lovers versus audiophiles.. everytime I improve some part of my system I discover another aspect of music that I never thought about before... this breeze 933 clone is a perfect example of how to get more music for not a huge sum of money as compared to modern Electrocompaniet. It's truly an excellent sounding product. I have plenty of amplifiers to compare it to and it's up with the best musical sounding ones.@@frankgeeraerts6243

[@NickP333]

@@frankgeeraerts6243 Hey Frank. I didn’t know Lundhal used Mogami wire / cable. My SUT I built has Lundhal transformers in it. Agreed, Frank. I wouldn’t buy this amp either, and I like how you say it’s for audiophiles, not lovers of music. There’s some definite truth to that, especially with those measurements. I never really pay attention to measurements unless I’m checking voltages in a PSU or what the PSU is powering. My ears are always the deciding factor. Is it just me, or is there not enough emphasis put on power supplies? Without a well designed and even overbuilt one, you’re not gonna get everything possible out of a certain circuit. I haven’t had the pleasure of hearing an Electrocompanier amp, but I’d love to. Hell, I wanna hear as many pieces of gear and combinations possible, but there’s just SO much of it. I think one need to somewhat narrow down their favorite topology(ies) of amps, preamps, etc., figure out how they work and experiment building them. I’m certainly not stuck with one type of amp, as there’s great tube and SS designs, but it’s how they’re implemented that makes the difference. I do know, I prefer mostly tube gear and high sensitivity speakers, but that realization didn’t come over night. Yeah, some of those old WE amps were completely designed for enjoying music that sounds like, well….actual music instead of feeding the greed machine of certain high end audio. I didn’t know they had specs like that, but that’s very telling we basically had it right almost a century ago…. Thanks Frank. Again, I always enjoy talking with you, as I think our goals on music reproduction is rather similar. Plus, if I see a ridiculously priced piece of gear, I think of how I can simplify it and build it myself. When you do that, it seems you’re able to enjoy the music that touches you all the more.

[@777gordini]

I have had one of these for a couple of years now and agree with your comments. I use Quad ELS63 Electrostatics and agree that direct connecting the board to the input RCA's will make a difference. But the big improvement was changing the OPA07 IC to a discrete module...the OP03 single or the OP01 single unit from Aliexpress is what this amplifier needs to become absolutely superb. I tried several iC's but this discrete module is the business. I found that standard using the 07 that its good but found myself a little disappointed on some CD's. After substituting the IC's to the OP03 discrete single its night and day...And by the way Imaging improves immensely. I read somewhere that this is a negative feedback chip and it won't make any difference changing..well thats completely wrong...its a massive improvement... Check the earth path as well because mine was not even connected at the IEC socket and the possibility of oscillation is possible when plugging in the RCA's if its powered up...

[@k4syx]

So I guess it was you that I was referring to in the video :) I've read about that on AudioAsylum (I think?) - Im gonna order them and try that, I was surprised to learn that there is just one or two offers on ali for discete 01/03

[@matytinman]

OP03? I think is OP37 [ The OP37 provides the same high performance as the OP27, but the design is optimized for circuits with gains greater than five. This design change increases slew rate to 17V/µsec and gain-bandwidth product to 63MHz. The OP37 provides the low offset and drift of the OP07 plus higher speed and lower noise. Offsets down to 25µV and drift of 0.6µV/°C maximum make the OP-37 ideal for precision instrumentation applications. Exceptionally low noise (en=3.5nV/Hz at 10Hz), a low 1/f noise corner frequency of 2.7Hz, and the high gain of 1.8 million, allow accurate high-gain amplification of low-level signals. The low input bias current of ±10nA and offset current of 7nA are achieved by using a bias-current-cancellation circuit. Over the military temperature range this typically holds IB and IOS to ±20nA and 15nA respectively. The output stage has good load driving capability. A guaranteed swing of ±10V into 600 Ohm and low output distortion make the OP37 an excellent choice for professional audio applications. ]

[@k4syx]

@@matytinman you're right obviously, I was just referring to the options on Ali. I saw discrete 01 and 03, no idea what 03 would be for. I was also thinking about using single OPA828 as it's really fast (slew rate), precise and very good when it comes to noise - according to datasheet. But I haven't compared all parameters (yet).

[@777gordini]

​I tried several ic's.. nothing came close to the discrete op03 single in that 933 clone. You can try them all but I wouldn't waste too much time. Go straight to the OP03 single. Good affordable price as well. ​@@k4syx

[@777gordini]

😂​​@@matytinmanno.. it is the OP03 single discrete module.. that OP01 single and double and OP03 single and double series I have yet to hear a situation where it doesn't work superb.

[@marcinwasilewski5414]

Nice review. Very interesting, especially for what you said about wanting to play louder. The 956 is also very interesting cause it has similar topology with 1 sanken per half sine, no paralleling.

[@k4syx]

@@marcinwasilewski5414 yes, I'm really curious about more expensive options now. They are more expensive, but if they bring even more of this fun to the table, then I'm in!

[@AlanFenick]

I purchased the upgraded chassis model! It’s everything you described and I’m very happy!

[@k4syx]

Thank you!

[@stefanthuering6456]

Thanks for measuring the real power usage

[@k4syx]

You're welcome. I always try to remember to do that as there are both good and bad surprises sometimes

[@rainham1]

what's the real power usage? sorry I missed it

[@stefanthuering6456]

From 3:35

[@AswinLai]

Finally!! Burmester clone!! Thanks for reviewing them, looking forward to see your review abt what those other burmester would sounds like

[@k4syx]

909 clone got on my list pronto. Just need to create budget for that as I am planning to go for newest XLR version.

[@benvanbaaren7483]

You can opt for a payment method that allows you to pay for the amp in 3 monthly installments. Your creditcard will be debited each month for 3 months for the specific amounts. It’s called Splitit and I used this myself for my latest purchase. Works like a charm.

[@benvanbaaren7483]

@@k4syxyou can opt for a payment method that allows you to pay in 3 monthly installments. It’s called splitit and I used it myself for my latest purchase. Works like a charm. By the way, after your enthousiastic review of the 933 I’m now interested in the 909 as well. I might buy it as a more powerful alternative to my FM300A. I really shouldn’t watch your channel anymore because it will only cost me more money😂. There are some other behemoths like the Mark Levinson ML-09 from Breeze Hifi or the Nelson Pass Aleph 5 I’m interested in. Choices, choices…

[@mnmlist1454]

thank you for the video ; looking forward to your comparisons with other clone amps.

[@k4syx]

Hi Chris! Not yet, as I havent reviewed all the preamps I've ordered (some are still on the way). But you cant go wrong with something like Accu C-245 clone, thats sure match, however I am waiting to test some tube preamps as these may add some of this "tube magic" that everyone loves :)

[@mddawson1]

While I have expressed my own caution in getting clone amps after my poor first experience, the amps you have been reviewing do all seem to be very good and may convince me to experiment again with them.

[@k4syx]

@@mddawson1 they are! As I always buy them with my own money I do a lot of research reading forums, Ali comments and basically every bit of info I can find. So far, all of these really are superb. I also link to the stores that I tested and trust, as I had in the past a few (just a few, but still!) problems with delivery or damage of the parcels.

[@calaf_725]

My first experience was also poor. I gave it another try and i am happy that i did.

[@isavepro2011]

Thanks for your reviews. I bought the fm300a and the sound is very good. For now I'm using the Fiio K7 as a preamplifier and everything plays well. However, I wanted to try a preamplifier, perhaps with tubes. I'm waiting....

[@k4syx]

@@isavepro2011 stay tuned! :)

[@nikosdm]

Thanks for the review i follow your channel for quite a while ,for the majority of customers who don't want to pay a fortune to buy an amp or preamp and with basic electronic knowledge to upgrade the components ,this amp looks nice sanken makes good power chips my old school onkyo amp have similar.

[@k4syx]

@@nikosdm Thanks!

[@ChrisJohnson-c3s]

Beautiful elegant design, great review

[@edverbeek6292]

Very helpful. Thanks. Looking foreward to the comparison.

[@mddawson1]

I finally connected my XLR 933 to my main system and listened to it for a couple hours. Note, I haven't done any burn in and I am using the same source, an Eversolo DMP-A8. First impression, the 933 sounds fine with no obvious audio anomalies. Sound is detailed with no harshness in the high frequencies, clear midrange and has good bass punch. But... compared to my Hypex Nilai amp that measures close to perfection (check the ASR review), the 933 lacks the inky blackness in the space behind the music as well as lacking the absolute detail the Nilai extracts from recordings. That said, the 933 plays +6db louder for the same volume setting on my DMP-A8 (but I can alter the Nilai's input sensitivity). Bass was also fuller with the 933 but at the expense of control however it never sounds bloated. I will continue to use the 933 as my main stereo amp to give it time to burn in and also allow me to hear the differences when I switch back to the Nilai. Note: I purchased a Douk Audio/One Little Bear 3-In-3-Out XLR switch box some months ago that I was going to use it to switch between amps and sources for quick A/B testing. While playing around with it one day, I discovered that it had some channel bleed over where I could faintly hear audio from the disconnected source playing through the connected amp. So no quick A/B testing for me.

[@k4syx]

Give it some time to play, it will nicely change. As for the details yes, Hypex are monsters. What about imaging? How would you compare them in this area?

[@mddawson1]

@@k4syx They both image well with vocals dead centre and instruments placed around the soundstage but I feel that a lot of that is due to my speakers - Arendal 1723 Tower THX. The differences were in the finer details of the presentation. For example, the track 'Earthly Elegance' by Kalya Scintilla begins with what sounds like a xylophone and various electronic sounds shifting around in the space between and beyond the speakers. These sounds seem to float in an inky black space with the Hypex but not with the 933. In particular, there are these squelchy electronic sounds that with the Hypex sound like they are coming from directly beside me, something that doesn't occur with the 933. I am not saying the 933 is a bad amp, it probably sounds as good as many more expensive amps on the market. Perhaps upgrading some of the internal components would take it next level but that could end up being expensive and pointless if the original caps are genuine Nichicon. The 933 wins with repairability, it would be straightforward for an amateur to repair should some components fail. The same cannot be said about the Hypex as it would need a qualified tech to fix it or I would have to buy a replacement module for the ones that fail ($620 for amp modules and $420 for PSU modules).

[@k4syx]

@@mddawson1 wow what was the price for these? Cause I think we're not in the same league here? :)

[@mddawson1]

@@k4syx The Hypex Nilai stereo amp kit is EU1225 and the additional PSU is EU250 from diyclassd. Building the kit is straight forward as it all screws together, no soldering required. If you can assemble Ikea furniture, you can build this amp. Adding the second PSU was more difficult requiring 14 precisely drilled mounting holes and soldering some wires together. Alpha Audio shows a step by step assembly of the amp kit and a comparison test between the Nilai, a Purify and an Ice amp.

[@k4syx]

@@mddawson1 But this means they definetely do not play in the same league, it's way more expensive that DartZeel clone too! :)

[@ancientalien815]

They have another version of this with XLR inputs on Aliexpress but its like $700 after shipping. Looks very interesting, completely different build. The one you have looks better.

[@k4syx]

@@ancientalien815 yes I saw that, I chose this one because of the price alone. Now I'm tempted to get all others :)

[@johan5660]

As usual another great review of the clones.❤ I just watched a review by Nemo Propaganda on IOTAVX SA40 under 1k euro (this is not a clone) with 150W into 8ohms and doubles down into 4Ohms. The amp is an integrated amp including DACs. It also has phono in MM/MC, pre-out, Amp in, sub out and RCA & XLR inputs. The 'amp in' will be very useful as a home theatre bypass or DSP loop. He is raving about this amp. He also reviewed another amp in the similar price category, with similar rave, that has tons of features, the Outlaw Audio RR2160MK2. If only you could put the IOTAVX SA40, Outlaw Audio.. against all the clones that you have..that will be really great. Will the clones..Dartzeel, FM711 MK2 stereo amp, MF A1, Burmester 933 etc. beat the IOTA & Outlaw audio? Is it worthwhile to go for the clones anymore?

[@k4syx]

Id love to check that out! However, I would still bet on my separates combination (Singxer Su-6 + Gustard X26Pro + something like DartZeel or 933) :) I know it wouldnt be a fair faight (3 vs 1) but thats what separates are for in the first place ;) But seriously, Id love to hear them and compare them. Maybe someday!

[@Prototexel]

Great review! The way you describe the sound signature of this amp has made me really interested in this one! Especially to power some HE6se V2’s I recently picked up (to crank its dynamics and punch to 11). It’s a shame the shipping is so dang expensive though (shipping costs more than the amp!!) Maybe I can find a shop that offers it with more reasonable shipping. 🤞

[@wsy2569]

I hv a pair of these driving my Hifiman Susvaras... FANTASTIC SQ! Bass punch and Control is Superb!

[@wsy2569]

I paid v cheap for the pair! Total w shipping abt 450usd! U hv to change the volume control to a genuine Alps Rp27! Fitted one is scratchy n has sound leakage at zero setting!!!!

[@k4syx]

@@Prototexel yes that's strange, I'm using the same link, I got it from exactly the same offer because of lowest price and shipping for me there is like 50usd! I've heard that some of guys see that as more than 200$! This will be a great pairing with HE6SEV2:)

[@k4syx]

@@wsy2569 mine is quiet, but I'm going to bypass it anyway:)

[@wsy2569]

@@k4syx I need the volume control for the Susvaras adjustment

[@riccitone]

Oh man…all these cool little amps you’re bringing us makes me wish my pre had rca outs! I know you’ve mentioned some with xlr option, but more expensive. Great review again and really enjoy your Ali deep dives 🙏🏼

[@k4syx]

@@riccitone you can use simple XLR to RCA connectors or cables. This will work I've way only (XLR output to RCA input) as if you'll take gnd and hot from XLR, then you basically have 0-2V single ended. It will not work the other way around, but if you want to connect RCAs to XLR output - you'll be fine! Look for adapters or ready made interconnects!

[@riccitone]

@@k4syx For real? Does that depend on the type of amp? I was told that could cause phase issues or something. My pre is true balanced if that means anything…good to know if you’ve tried it and it works no problem 🙏🏼👍🏼👍🏼

[@k4syx]

@@riccitone yes for real. XLR has gnd, hot and cold pins. Cold is hot, but mirrored and ranges from -2V to 0V. Hot is from 0 to 2V, exactly like RCA single ended. So you just take two of three lines to get XLR to RCA. Check these out (that's what I got btw and in some time there will be a video review) s.click.aliexpress.com/e/_EyEu0yh

[@eugenefudge1883]

great review. I just can't wait for the Burmester 909 review. I am awaiting delivery of mine. I will let you know when i get it

[@k4syx]

@@eugenefudge1883 yes please do!

[@calaf_725]

I am interested in your opinion too. I was between the 909 and the D9 Dartzeel and chose the D9 but i still got my eye on the 909!

[@FDKAUSW]

@@calaf_725 I think the Burmester will lose the race. Because NHB Amps are the best 🤗 look 65.000€ 🫣

[@gerardjoye5033]

How have you found the 909 sound wise? Does it get very hot?

[@k4syx]

@@gerardjoye5033 I havent recevided the parcel yet. Its there, available, there was a first delivery attempt today, but for this week I'm in LA so I can only watch tracking info :/

[@kevinusta7534]

Great video. Have you done a video on which of the clones top your list of best sounding?

[@k4syx]

@@kevinusta7534 not yet. Haven't reviewed all the flock I got yet. But that will be a really hard question, as for now I can already see these all are superb and excell in different areas (sometimes overlapping). The cause for that may be that I'm not buying random stuff: as I do pay for these, I'm choosing my purchases after some research on the web and some conversations with store owners. So no duds yet (keeping my fingers crossed)

[@benvanbaaren7483]

After your enthousiastic review of the Burmester 933 clone I got curious about its biggest brother the 909 power amp. I found two versions, one with a 1200 watt transformer and the other with a 1500 watt transformer. They are big bruisers weighing between 28 kg and 30 kg and they come in the same type of enclosure as the Dartzeel NHB108. Power output is 185/370 watt and 225/450 watt p/ch at 8 and 4ohm. They’re not inexpensive but you can opt to pay in 3 monthly installments. I chose this payment method myself for my latest purchase and it works like a charm. I may be tempted to order one of these myself as a more powerful alternative to my FM300A. I really shouldn’t ’t watch your channel anymore because it will only costs me more money doing so 😄.

[@k4syx]

This one is on my list, Im waiting for 11.11 sale and some juicy coupons :D

[@Junan.Reclaimed]

Looks like this one is going to be my first clone amp

[@k4syx]

@@Junan.Reclaimed good start for great collection, seriously!

[@BostonMike68]

​@@k4syxI'm thinking the same thing! How can you beat it for the money.

[@k4syx]

@@BostonMike68 you can't. This one and MFA1 clones are "impossible amps" for me :)

[@BostonMike68]

@@k4syx that's a great price for the quality. I'm looking through your videos for a pre amp that would be a good fit.

[@k4syx]

@@BostonMike68 there are 3 that already had been reviewed and 5 in line waiting

[@HotSause]

Please please please do get the bigger brothers, incl the monos. From what you say, I'm wondering if the special sound signature remains or even increases to its larger siblings. Sometimes not.

[@k4syx]

@@HotSause keep your fingers crossed for me getting good price on my second kidney!

[@johan5660]

@@k4syx what happened to your 1st kidney 🤭

[@k4syx]

@@johan5660 I traded it for a heap of stuff I review now :) I would attach photo if I could (of the equipement heap, not kidney ;))

[@johan5660]

@@k4syx 🤣

[@mddawson1]

Well last night I decided to get the XLR input version of this amp and placed my order with the same store you use. From the Ali photos, it appears to use four single channel OP07 op-amps that can be replaced. I will need to figure out if there are any suitable discrete op-amps. It will be interesting to hear how it sounds as it will have tough competition with my current amp, a Hypex Nilai that is the current state-of-the-art in class-D amps.

[@k4syx]

@@mddawson1 Please share your thoughts when you'll get it. Can you link to the specific build? I am always a fan of XLR and going balanced. OP07 are probably for current feedback, I've ordered recommended 03 discrete ones to check if they actually improve the sound. 07 is also used in some amps that I reviewed earlier (like DartZeel) so I'll have some more experiments with other builds.

[@mddawson1]

​@@k4syx It is called 'AMXEKR 1:1 Replica Burmester 933 Power Amplifier Circuit, Classic Classic Class A and B Fever Pure Power Amplifier' at the BREEZE Electronic Tube Audio Store. My posts seem to vanish if I post links.

[@k4syx]

@@mddawson1 yeah YT does that for Ali links. I know that one, looks good, but more expensive than the one I got :)

[@BlazSvetlic]

Excellent review, bravo! Is it possible to connect a preamp to this amp, something like you did with "Musical Fidelity A1 speaker amplifier clone: volume control bypass" video? Thump up, subscribed!

[@k4syx]

@@BlazSvetlic yes and that's my plan, I want to bypass internal volume control completely, getting RCA inputs directly to the PCB board via some quality shielded cable. There will be video on that!

[@BlazSvetlic]

@@k4syx would you recommend it for Elac debute 5.2?

[@k4syx]

@@BlazSvetlic yes and in that pairing the speakers will be bottleneck so you'll have a clear upgrade path. 933 sounds brilliant with my 35xti and Ascents too!

[@BlazSvetlic]

@@k4syx Just ordered it, couldnt wait untill 11.11. 😁

[@k4syx]

@@BlazSvetlic lol I can totally relate :D

[@humanitech]

Another interesting clone amp review and its built like a tank! But having followed your reviews for a while now,... I am really looking fowards to your comparisons at some point! Thanks!

[@k4syx]

@@humanitech yes that's still the plan, but I need to do a single reviews first for all of them before I start comparisons :)

[@RyanScanlan-o7o]

I have bought the oatlan 5.5inch small nautilis speaker from your review. You recommended the Olchen tube amp for a pairing. My question is, how does this burmester 933 clone sound paired with the small oatlan speakers?

[@k4syx]

Also very good, I was recommending Oldchen specifically for the magic than happens with vocals (but it's just 2x5W)

[@RyanScanlan-o7o]

@@k4syx Thank you brother. This channel is seriously amazing and helpful for all us audiophiles that value price to performance. Thank you!

[@NormcoreGreg]

Dzień dobry. Śledzę Pana kanał od niedawna i jestem pod wrażeniem jakości recenzji. Myślę, że Pana widzowie nie mieli by nic przeciwko temu, gdyby w opisach podawał Pan linki afiliacyjne do sklepów biorąc pod uwagę wartość jaką Pan zapewnia. Z komentarzy wnoszę, że sporo osob domonuje zakupów na podstawie Pańskich recenzji. Aliexpress nalicza całkiem przyzwoite prowizje, więc pomogłoby to Panu w finansowaniu kolejnych zakupów sprzętu. Pozdrawiam.

[@k4syx]

Thank you (for your kind words), thank you (for liking my videos) and THANK YOU for the affiliate info as I literally had no idea they do that! I am just checking that out as yes it would be a great help for building the budget for more exensive clones like Telos or "Orsefon" builds!!! THANK YOU!

[@k4syx]

@@NormcoreGreg aaaand I've checked that, joined the program but most of these do not qualify XD

[@NormcoreGreg]

@@k4syx to chyba też zależy czy sprawdza Pan na polskojęzycznej wersji ali, czy na anglojęzycznej z dostawą do US. W moim przypdku często to sprawia, że produkty się nie kwalifikują.

[@k4syx]

@@NormcoreGreg Good tip, will get through my list once again. Bardzo dziękuję, to może mi pomóc rozwinąć kanał i zbudować budżet na droższe klony - Pozdrawiam!

[@PINKFL0YD-s2h]

I'm looking at this at the moment..

[@EvenHarmonics]

Enjoyed your review!! I am lost as to what I should look for to drive my electrostatic speakers. The manufacturer (Martin Logan) says 200-400w power in 4 ohms, these are 130w. Mfg says 4ohm watts should be 2x the 8ohm watts and this is 1.3x. Mfg says 2 ohm power should also show an increase and this has no 2 ohm rating. I believe your review, just don’t understand why it works and $215 shipping gives me pause. Thank you!

[@k4syx]

@@EvenHarmonics there's some weird thing with shipping, I can see it as around 50usd (as I paid) but you're third person saying it's very expensive. I'll ask them about that, maybe that's some weird Ali stuff. As for power output for electrostats what counts is current delivery for heavy (low impedance) loads. If the amp is powerful, then there is a chance that it will handle that kind of load well. On the other hand there are designs that are not that powerful, but have great current delivery abilities. This is probably one of this cases. And the whole thing is reason for my quest of searching something that will drive my Logans better than twin 851W (and cheaper, maybe :) )

[@rmzidann]

Nice review! Thank you. How would you compare the soundstage width and depth and imaging of this amp vs the D5 Pro?

[@k4syx]

@@rmzidann I think D5PRO is better (from memory). I will be doing comparison vids once I will review everything I bought separately.

[@d.cameron4415]

Could you please provide links to the two more powerful versions from the seller you would recommend? I would like to see these. Thank you so much for these videos. Your videos are very helpful!

[@k4syx]

This one: s.click.aliexpress.com/e/_DepBilR (Ive got one thing earlier from them), cant find the other one now (AFAIR it was in Transaudio chassis)

[@chriswasta7765]

Do you have a pre amp suggestion for this amp for the beginner in this hobby. Thanks for the video and best regards, Chris

[@k4syx]

Not yet, I need to finishing reviews on all I ordered (including some tube ones!). For now - you cant go wrong with either JC2 clone or Accu C245 clone I've reviewed. Though C245 would be probably better pairing, I still need to hear them together. C245 is excellent, but its elegant and laid back in presentation. And I would very much like to retain this wild and fun 933 signature!

[@shj-v6c]

The amp sounds really nice. Thank you so much for the great review!! Can we just remove both connectors from PCBs to bypass volume pot on the burmester 933 if we use the tracks on the PCB edges?

[@k4syx]

I guess so, I always like to do things in reversible way though :)

[@shj-v6c]

@@k4syx I have bypassed the volume pot by using jumpers on the connectors on PCBs after removing wires to the pot for both channels . A reversible way it is. Not sure about the differences before and after though. Thanks.

[@k4syx]

@@shj-v6c Thanks for sharing! But this way you are still using these long pcb tracks, right?

[@shj-v6c]

@@k4syx Yes, I am still using the long PCB tracks this way. My amp came with 20KA knob (I see 50KA on yours), but I measure 25K on PCB and about 18K through the knob at zero volume. So, I should expect some improvement in sound by bypassing the knob. No?

[@k4syx]

@@shj-v6c Yes, there should be noticeable difference. Maybe the difference lies in speakers or DAC, maybe theres some bottleneck that makes that change irrelevant. Whats the rest of your setup?

[@HoomanR17]

Thanks for all your reviews.. your review of the Musical Fidelity is very positive.. wondering how this compared even though its not Class A.

[@k4syx]

@@HoomanR17 get both of them. Seriously. They are both brilliant little gems. And they are so cheap that's unbelievable. MFA1 is less powerful though so sensitivity of your speakers may be the factor limiting the choices!

[@HoomanR17]

@@k4syx Thanks for your reply.

[@705johnnyboy]

why haven't you got 50k subs yet,im getting one of these cheap miracles ...

[@k4syx]

@@705johnnyboy link please? I'm not familiar with these, though I'm curious about some speakers I saw on Ali

[@wsy2569]

Using it as a headphone amp for difficult to drive planar HPs! It still runs cooler than my Aleph Clone class A mosfet amps but feels hot if u put yr hand over the vent grills on each side of heat sink 1st amp blew power transistors on 1 channel after 48 hrs fr delivery! Not even run in yet!!!! 2nd amp I repaired with genuine SANKEN power transistors but ai dont know for how long as the other components on the power pcb may not be of high quality???

[@k4syx]

Aaaaahhh if you are using this to drive planars, thats completely different story. You may experience bad things as this was never meant to deal with that kind of load. I'm usung some of these amps that I review to drive my HE6seV2 (via speaker tap to balanced XLR cable) and you always have to be very careful, as no amp like this was designed to drive 50Ohm loads with sensitivity as low as 83dB. That would also explain the heat...

[@wsy2569]

@@k4syx You could be absolutely correct! Well still an economic solution until i get a flux labs mentos hp amp

[@wsy2569]

@@k4syx I listen at low volume with vol knob at no more than 10 oclock! But the amp is hot even when on warmup with zero on volume knob??? I will do more testing with hps than are 8 ohms, 20 ohms and monitor temps! thx

[@wsy2569]

I usually add a wirewound 10 ohm resistor across +ve and -ve spkr output taps ! The amp power supply sees an equivalent 8 ohm load! Ran my Aleph 3 Clone mosfet amps with my Abyss AB-1266 phi/cc HPs this way! The amp will still still blow but maybe the transistor but after 1 year of daily use! Just added Outboard OMRON protection boxes btwn amp and HP! This 10 ohm resistor short across spkr tap shorts this unit and faulty Sound! So I stop using them ... maybe that is why my amps are blowing power transistors! But protectionof my 2 v expensive Hps is most important Using my KT88 tube amp with output transformer in each channel as HP amp until I buy a Flex Hp amp or a Gustard H26! Btw the tube amp 2x15watt can drive the Abyss but the Susvaras sound weak🥴

[@gr8ednz]

Just wondering if you have planned reviewing of some of the inexpensive preamps in this category?

[@k4syx]

Yes! I actually did review a couple of them already (browse through my vids) and I have purchased a few new clones this time with some tube preamps too!

[@TheJerry32]

I'm looking for good amplifiers for my home cinema. I currently have a NAD M25 7-channel amplifier but would like to expand it to include 3 separate stereo amplifiers. What would you recommend if you want good resolution and powerful bass? Space is not important. Burmester 933 or DartZeel NHB-108? Or is there a better alternative? Many thanks for the good tips

[@k4syx]

Now that's a tough choice. DartZeel is two times more expensive than 933, so getting 3x933 would be significantly cheaper. And DartZeels would be overkill for home cinema. Let's be honest, there's no BDs or streaming services, nor multichannel media (except for some SACD) that would show full DartZeels capabilities. So go for 3x933. And then get 1 DartZeel on top of that purely for stereo music listening :)

[@stephanloper5740]

Hello, from your experience, what would be a good preamplifier as a feed for the amplifier? Greetings from Cologne

[@k4syx]

@@stephanloper5740 for this one I would go for either JC2 or Cary from the ones I've reviewed. With slight bias towards JC2 for it's clarity and precision, to maintain that raw and wild feeling

[@Infozavr]

First of all thank you very much for your channel! It's real the KZbin Gem for music lovers, keep going! I got A1 Clone right after your review and it is really amazing amp! How does this Burmester 933 MK2 clone sounds on moderate low level volume? Does it have enough meat/juice and richness? Or does it sound good only at pretty loud levels? (It's very important for listening music or movies at nights) It really worth mentioning quality of low level volume sounding for all reviewed or future review amps. Does it have any white noise/hiss when music is not playing? (A1 clone has not any, and that's great) And how does it sound compares to Sabaj A30a? I got Sabaj A30a previously because of Audiosciencereview forum recommendations, and it is total disappointment for me, because it sounds clinically dead or analitycal or rafinated and uninvolving for my taste (built in presets and bass treble control couldn't help). Don't know how proper describe it, something is wrong with its sound itself (I mean Sabaj A30a), it's like it has no enought juiceness/meat/richness in sound. A1 clone is much more musical to my taste! Also could you please recommend the good musical USB DAC with rich, juicy, warmish sound to pair good with A1 clone or this Burmester 933 MK2? (To play music from PC) I try save for Denafrips PONTUS 15th but its very expensive, maybe you know something really good in lower price range?

[@k4syx]

Hi, thanks! answering in same order: 1. 933 sounds very good at medium and low levels. I dont usually listen loudly and its important for me that no details will be lost with lower volume setting. Will include that info in future reviews 2. No hiss whatsoever, dead silent even with volume maxed. 3. Your description of A30A is very accurate, its very important to pair it with warmish speakers. I still have mine downstairs, its very precise, detailed and I like it, but I totally get what you're saying - its bad conditions it may be like listening to voltage meter. 933 beats it hands down, same as MFA1 (both with external DAC). 4. As for cheap and excellent DAC (real gem and surprise!) check out this one: s.click.aliexpress.com/e/_DCDO1cX and take a look at my review. Get a 12V LPS for it and enjoy excellent AK4499EX sound (beware, opamp rolling may be addictive). Its part of my permanent collection now (small guy on the left side of my center speaker sometimes visible in the background of my movies)

[@Infozavr]

@@k4syx Thank you much for your reply! Seems like it's a really bargain amp for the price! Think I'll get one) They also got Burmester 933 (without MK2 add) - power amp with no volume control, with XLR inputs and with maaany capasitors inside that looks really tempting (but the housing looks less attractive though than this Burmester 933 MK2 in this video because of big ugly logo and back-side power button), but the price is doubled compared to this one in video, so I'm a bit concerned wich one to choose) Thank you for DAC suggestion!

[@k4syx]

@@Infozavr I'm going for 909 too, 9.4 version when I'll have the budget available

[@madeuce190]

Hey man. Excellent review. Just wanted to ask something different. How does the Aiyima a70 with op amp swap compare with this one? I know these two use completely different technologies but still wanted to know since their price point and power output are quite similar. Really wanted to know your opinion on this. Thanks

[@k4syx]

This one is about pure sound quality. Just one sets of inputs, volume that would be better to bypass, and it's like 2 or 2.5 times more expensive. Aiyima has better functionality. But taking only SQ into account, it's better. But I don't think it's fair comparison because of the price difference, and the fact that Aiyima actually does r&d.

[@madeuce190]

@@k4syx I see. the reason i said the price is comparable to the a70 is because this clone is on sale now for 232usd. and i know and use a shipping forwarding company in my country that charges only 5usd per kg with no additional tax or customs duty. so the shipping would only cost me around 60/70usd. Under 300$ all inclusive for this amp, seems like a deal of the decade to me haha. will be placing the order tomorrow. thanks a lot for all the help man. this channel is like a gold mine. wish i had found this earlier, could have saved a ton of money.

[@wsy2569]

To all interested in this Amp, I hv had 2 faulty power stages! One amp came fr China and blew one channel within 48 hours! Aliexpress /seller reimbursed me abt 45% of purchase price and I had my local Amp Technician repair it! I hv a pair of these amps... and one channel blew on the second amp So Caveat Emptor!! cheap and sounds good but power transistor will blow say 5-6 months at best!

[@k4syx]

What exactly was damaged in this two cases? Can you share (if you got that info from repair shop)? What kind of speakers do you have? My unit was playing for two weeks in a row, continuosly, during burn in and it stayed cool. Also, did you get yours via my link or from some other supplier? I know - a lot of questions :)

[@MasterofPlay7]

great review, so when are you going to review the baby 1969 amp?

[@k4syx]

Its burning in now, its waiting in line - probably after Gryphon and a Cary LS90 tube preamp. A month? Maybe sooner?

[@pandstar]

I've been interested in this amp since I saw it pop up on ALIEXPRESS. I wish there was a version without the potentiometer though. I'd rather not have the signal pass through an inexpensive pot.

[@k4syx]

@@pandstar there's one, but it's more expensive and looks like a different build inside. I will bypass the volume pot on mine, stay tuned for video!

[@sonusancti]

How does this 933 compare to FM300A?

[@k4syx]

Totally different. Id say this one is power and fun, while FM300A is romantic and elegant if that makes sense to you. I will do comparison videos once I'll finish reviewing all the amps I purchased.

[@sonusancti]

@@k4syx That's a very intriguing comparison. Thank you!

[@sonusancti]

@@k4syx Btw, I watched your Evo 4.2 mod. Did I hear you right? You replaced a 30uF 50V electrolytic with the Mundorf 150uF 63V bypassed with the Jantzen 6.8uF 400V? I must've misheard.

[@k4syx]

@@sonusancti yes the replace was higher value, the idea was to get more treble to the tweeter but I don't remember exact values - I think you can see them in the vid as I got both caps in front of the camera :) I got that particular value from guy that had his Evos modded in some speaker workshop in Italy - I haven't checked out calculated this value on my own

[@sonusancti]

@@k4syx Interesting. Thanks again.

[@diversven]

Thank you for your videos. I am considering investing in your tested Burmester 933 MK2 clone. I am planning to use it with a pair of Dali Evidence 850 speakers, as well as a CD player and a turntable. Do you have any suggestions for a setup that would allow me to connect both units to the Burmester 933 MK2 clone.

[@k4syx]

youd need some kind of rca selector (can get those on ali) or preamplifier, though that would up the price and could affect overall sound signature. Something like that one that uses relays: s.click.aliexpress.com/e/_Dk83tQt

[@diversven]

​@@k4syx Thank you for your recommendation. I decided to go with one of your other suggestions instead - a Gryphon Tabu clone and a tube-based phono preamplifier (based on an EAR384 and ECC83 tubes). The speakers ended up being a pair of Piega Classic 7.0 instead. Fingers crossed that it all sounds great together!"

[@k4syx]

@@diversven Gryphon is an excellent choice. One of my viewers said he compared Ear and D. Klimo and liked Klimo better. I myself have no turntable so cant confirm nor deny anything :D

[@janicejacksonthethird]

Besides the higher power output, Is this better sounding than the A1 clone?

[@k4syx]

Different - not miles away. This one is raw and fun, A1 is elegant and transparent. Honestly I am keeping both of them: they are both great and they are both small so they dont take a lot of place

[@word2RG]

clone wars.. awesome! :)

[@BostonMike68]

I'm seriously thinking about ordering this after seeing what quality for the money, I see it has a volume but it must need a pre amp.

[@k4syx]

Its fabulous as a power amp. I will be bypassing volume on it anyway, to use it as pure power stage. If you need more analog inputs then yes, some preamp is needed. For digital inputs DAC with volume control may be simple answer.

[@BostonMike68]

@@k4syx maybe the new wiim pro. It even has a subwoofer out. That's a good system for short money. That amp is nice thick aluminum and 100 watts is all I need especially with a high damping factor.

[@gerardjoye5033]

@@k4syx how does one adjust the volume on the 933 if there's also volume control on a connected preamp or dac? Do they need to be roughly balanced or one more than the other?

[@k4syx]

@@gerardjoye5033 My way of doing this is to get as close to max on source, but leaving room for changing the volume vie remote. Like this: if my DAC allows me to set volume anywhere between 0 and 100, I would set volume on DAC to ~90, then set pot on amp to my normal listening level. This way I dont have to adjust the amp later and fine tuning the volume (a little bit up and down) can be done in source. As a rule you want to have your source set to as close to maximum to have best DNR and SNR. If my amp or pre has a remote then source always goes to fixed at max and I'm changing volume in amp or pre.

[@James10071976]

Can you please tell me how tò bypass the volume on this device? I'm not a technician. Thanks you.

[@k4syx]

Just answered the second comment :)

[@James10071976]

@@k4syx Here is your comment for the volume bypass: "yes and that's my plan, I want to bypass internal volume control completely, getting RCA inputs directly to the PCB board via some quality shielded cable. There will be video on that!" So I'm really looking forward for your video about the volume bypass. THANK YOU SO MUCH FOR ALL YOUR EFFORTS THAT YOU PUT IN YOUR VIDEOS!!!! REALLY APPRECIATED :-)))))))

[@maxrider2887]

How its sounds compare to A1?

[@k4syx]

A1 is sweet and melodic, and not that powerful. Get both, for their prices these are both no brainers.

[@maxrider2887]

@@k4syx my a1 drive with a wiim pro plus streamer an speaker dynaudio emit 20 , 86db , i think the power is more than enough to kill the dynaudio. I paly without wiim pro plus , the sound is not as much powerful.

[@raynerstuelgalid]

What level of bias on your machine, do you know? And how hot are you radiator at that?

[@k4syx]

@@raynerstuelgalid radiators are just warm to the touch, my notes say 36-37C. I haven't measured bias (I don't think measurement points are marked there, I don't remember)

[@petiteface]

does this come with a remote?

[@k4syx]

No, just the amp. you could use remote with preamp (I am recommending bypassing the volume control here anyway) or with the source, like DAC

[@petiteface]

Thank you. Bought the cary slp90 preamp and dartzeel clone. Love the dartzeel, but cary is so so vs my rotel pre amp.

[@k4syx]

@@petiteface Thats interesting! You got the version I've reviewed or the other one ("upgraded")? I am assuming you are afer first 50h of "cooking" the tubes (they need that)?

[@arturps2909]

Pozdrawiam. Czy mógłbyś mi pomóc w doborze wzmacniacza do JBL Studio 270 ( wiem , że to nie high end ale podoba mi się ich dźwięk ). Obecnie są napędzane przez AIYIMA A07 i mam wrażenie , że nie wydobywa wszystkiego z tych głośników. Zastanawiam się właśnie nad (klonami oczywiście ) Burmester 933 , FM300A , NAIM NAP 200/250 , może D5 Pro ( przesada ?). Z góry dziękuję za Twoje sugestie.

[@k4syx]

If you have the budget, go for D5Pro. It will get them to their limits and will be there for you when you'll upgrade them later. But these are solid choice!

[@arturps2909]

@@k4syx Dziękuję Ci za cenną uwagę. Dostępne są wersje D5Pro z przedwzmacniaczem i selektorem wejść . Czy masz jakąś wiedzę/opinię na ich temat ? Pozdrawiam.

[@k4syx]

@arturps2909 I was recommended by the seller to stay away from these as they tend to hiss. Apparently having MBL and DartZeel clones in the same chassis is not the best combination :)

[@arturps2909]

@@k4syx Dziękuję Ci za cenną informację . Zostanę przy D5Pro plus później SLP-90. Pozdrawiam.

[@FDKAUSW]

Lieber ​​⁠HiFi Zone, Du hast schon so viele Geräte getestet. Kannst Du mal bitte eine „Bestenliste“ erstellen: Z. B.: Rubrik Endstufen: Dartzeel NHB198pro = 100 % FM Audio 811 = 99% Musical A1a= 70% JLH 1969 = 60% Das gleiche für Vorverdtärker, DAC und so weiter… Das würde viele Folger weiterbringen. Danke ❤

[@k4syx]

Hi! My plan is to finish with the single reviews and then do something exactly like you ask - but with some scores for bass, mids, treble etc, so you guys will be able to pick whats best for you. So thats definetely coming to my channel, and same goes for the cables - speaker, XLRs, power cords, for which I already have that table but I need to test a few that I bought after a first round to have that complete.

[@majtextwriter1794]

Where do you live to pay only 50 USD for shipping? It comes 250+ 135 ship tu EU + import tax cca 100 = cca 485 Eur in total. I know, I bought a JLH1969 for 135 Eur and it comes in total 300 Eur- But still worth it a lot! The best buy in my hi-fi history by so far! This little amp just sweaps with much, much, much more expensive and heavier amps, particulary in some aspects (not all of them) of presenting the music. Ok, it is also not perfect to drive a heavy load speakers. For 485 Eur you can get... no serious amplification in regular hifi shops :)) perhaps for x5 or x10 the price.

[@ABC-rh7zc]

Same here. My end price would be $490, not $300

[@majtextwriter1794]

@@ABC-rh7zc yes, I wrote cca 485 for this amp. But still a bargain, I think, we can trust to some reviewers,

[@k4syx]

My Ali links this as shipping for 200PLN to Poland (EU) and this is rougly 50USD. Customs are calculated from total invoice price, but then again there is VAT discount (right before the shopping cart payment) as this is in total more than 150EUR. So the VAT (thats included in Ali listed price!) gets discounted and basically covers all shipping and customs fees. And then on top of that I ALWAYS hunt for sale and coupouns as I do buy them with my own money, so every dollar counts!

[@majtextwriter1794]

@@k4syx Sorry, but I do not understad this. Can you write down this on Polish? I will then put this in google translate. Can you you show us a practical calculation with numbers please? For a product costs 250 Eur, there is no way VAT is 150 Eur On Ali invoices is no VAT. Just amounts on their web- cost for amp and cost for shipping. And on that comes import tax or custom fee.

[@k4syx]

@@majtextwriter1794 ok again. The Ali list price always includes VAT tax. And there is additional shipping fee (unless there's info on free shipping). So the starting price is list price + shipping price. When you actually do pay in AliExpress app, right before the payment, if you are EU based and total value is more than 150EUR, the VAT will be reduced from your price because the rules say that for orders higher than 150eur vat should be collected in your country. So the final price you pay to Ali will be: list price+shipping-(vat*list price). Then the parcel gets through local customs. These guys will add customs fees, these are calculated on the invoice and this is random but lower than vat deduced from the Ali list price. So in effect, in my case, shipping and customs gets covered by the vat amount that Ali deduced from the original price. Meaning that finally, the amount I pay (for everything !) is either the same as starting list price (that includes vat that gets removed) or slightly lower. This can probably vary from county to country, as shipping rates do too. For example one of my viewers from Croatia said that the customs there never look at invoices and they just judge the base value for vat and customs on the prices they see on the internet. So if you order fake AQ Vodka cable for 40USD, they will charge taxes and customs for the price of original and that's just some horrible amounts of money!

[@GavinHodgson]

So which amplifier have you tried was the best for depth as you mentioned?

[@k4syx]

FM300A and DartZeel clones, from memory. But I have yet to do head to head comparisions.

[@robertm8518]

What preamp do you recommend that matches well with these high quality clone amplifiers?

[@k4syx]

@@robertm8518 another difficult question:) I'm still in the process of reviewing everything I ordered (including some preamps, solid state and tube based) separately and then there will be time for pairing them for the best setups. For example I got Naim NAC 52 to match with nap250 I have (not reviewed yet), fm255mk2 for fm300a and two Accu pre clones for two Accu power amp clones. And then we have tube stuff in line and great preamps like JC2 I've reviewed. Pure craziness!

[@jeffreypeterson4020]

So I suspect none of the clones are UL listed or CE approved. So are they safe?

[@k4syx]

@@jeffreypeterson4020 No, these are not, some of them can have verification marks, but that's like they will do anything for your order for some additional fee. Having said that from engineering point of view all of them are very good, thought out devices, safely designed and very, very well executed. They also do feature safeties for speaker and internal amp channels. Still, think of them as proven, good diy designs more than as mass market products.

[@supergwizzo]

Loving the Chi Fi and seeing how much the industry is 80 % Profits on low cost parts made in china anyway oh like Ps Audio that paul is a con man i know first hand . 😮😊

[@k4syx]

Yes most of the price is brand name, and fancy chassis (sometimes). To be fair I am all for proper charging for excellent design and R&D. But I think that most of R&D is happening now in DIY community and China, I think - may be wrong - that most of the established brands are quite happy with small incremental increases to last year builds and earning on repeatable sales, almost like in subscription model ;) Paul - I wont comment on that, I dont know anything more than that he is sharing his knowledge here on KZbin (and for that stuff I saw, he says good and true things)

[@EvenHarmonics]

You mentioned Berlin 909. Did you see the 909 MONO 700W XLR at Breeze HiFi Store. Yikes!

[@k4syx]

@@EvenHarmonics yes I saw that monsters:) I need to ask around about the best implementation so I'll choose something with best value:)

[@carlsitler9071]

Have you come across an amp you like with an optional internal crossover (high pass to speakers and low pass to sub out)?

[@k4syx]

@@carlsitler9071 not yet. Pure hi-end stuff rarely has sub outs. I'm using my DAC for that (or pre with twin outs)

[@carlsitler9071]

​@@k4syx Got it. Time for a new DAC. 😂 I appreciate the heads up.

[@fstein9099]

The shipping cost! Ouch!

[@k4syx]

@@fstein9099 yes I need to check what's up, it's way way lower when I'm adding this one to cart again. I'll ask about that the shop I got mine from

[@patrickmeylemans9627]

Which clone to power 802D3’s?

[@k4syx]

Real ones? Go for DartZeel right away! ;) Seriously - as far as I can remember you can find in the comments for my D5Pro review other guys with B&Ws :)

[@HotSause]

If you like it louder and louder, it may mean the good sound is outweighing the bad, relatively speaking. Please keep tabs of this characteristic thru your comparison. This is a biggie in my opinion.

[@k4syx]

Sure, no problem - always working on improving my reviews! :)

[@Junan.Reclaimed]

Is it better than fm acouatic clone?

[@k4syx]

@@Junan.Reclaimed Different. And this one is way cheaper. FM300A has beautiful mids, 3d imaging, a bit more detail. Proper hi-end. This one is about fun, rhytm and power. But it's also good in technicalities. Also hi-end, but very different presentation.

[@Junan.Reclaimed]

@@k4syx thanks man. Brz gear seller of my city told me fm one is better. I will go and listen to them both at his store soon. Which clone amp do you thnk best?

[@GregoireOllier]

Merci !

[@k4syx]

Thank you! (And I can see your second mail - will get to that in a few minutes)

[@JanEskildsen]

1 input - only 1 input - for CD player and nothing else? Please explain.

[@k4syx]

Thats power amp - these are usually used with preamps that have plenty of inputs. BrzHifi added simple volume control for folks connecting just one source like DAC - that would give you a full set of digital inputs.

[@fstein9099]

Shipping $214 almost as much as the amp!

[@k4syx]

Yes theres something wrong with that, for me its like 50USD, I've contacted the seller and asked whats up with this. Where region are you from? US/EU/Other?

[@fstein9099]

Massachusetts USA

[@k4syx]

@@fstein9099 so maybe that's it. On the other hand I can see in the tracking that some of my packages from Hong Kong are being transported via US based airports - weird.

[@gr8ednz]

Are you going to keep the dartzeel clone or are you thinking of selling?

[@k4syx]

Keeper for now (and this 933 too!) but there may be point in time when I'll have to rebuild review budget and sell some of these - ad income is hilariuosly low :) But for now - keeper, and I will not HAVE to sell in I will not.

[@jonnybech4758]

Hello Hifizone! 🙂 Really enjoy your vids and the fact that you u give the clones a real, fair shot here 👍 Nobody has asked yet how this 933 compare to the (reference) K5? I know it's double the price. But is it a whole new ballgame, or is it just nuances? If someone get a 933 to start off, and then another later to go dual mono (or biamp, dual mono if you like.. ) to upgrade to the next level. What's your thoughts on that? BR from Sweden

[@k4syx]

@@jonnybech4758 Hi there! What K5 you have on your mind? (Link or offer name if link gets censored). My experience with the clones so far is that as with other things in audio law of diminishing returns works here too. So for example DartZeel D5PRO clone is better than 933, no question about it, but it's twice as expensive. Is 933 twice worse? It's not, but DartZeel IS clearly superior.

[@jonnybech4758]

@@k4syx Hi! sorry, of course I meant the DartZeel D5 pro you tested 😊

[@karilindis]

first like :)

[@wsy2569]

And the amp cannot work even if one channel blows!! Just terrible Hum!!! My repair for replacing 1 channel will be about 40% of my purchase price! It runs HOT! I am putting a PC cooling fan below the amp I elevate on big rubber Footers

[@k4syx]

Can you take a look at the questions at your other comment? This should in no way run hot, its mildly warm in my case. Did you get yours via my link or from some other vendor? Do you have a specific info on what was broken from the repair shop?