Make an $80 Amp Beat $1,000 Amps?! Find out How!

[@wertzinhiemer]

It’s awesome seeing you go from spoof sponsors to real ones. I’m sure it’s small to many but it probably means a lot for the channel support-wise and you totally deserve it! People are taking notice of the great content here. Long live sith audio!

[@cheapaudioman]

I appreciate that! lol. I never thought I'd have real sponsors

[@miff227]

@@cheapaudioman hang on..."square space" is REAL ?!!!

[@victorgomeza]

But I love the Sith Audio stuff, I LMAO with some of the occurrences

[@cheapaudioman]

@@victorgomeza they’ll be more. I promise

[@RobertGerman]

I think sith audio should become a real thing 😉

[@KillerKlipsch]

Thanks Bro, just the tip I needed

[@cheapaudioman]

thank you!

[@ount252]

A bit late, but for posterity sake I learned that you must use dual circuit OP amps in the AO7 - In other words the SS3601 will not work, you must use the SS3602 (which is what Randy is using in the video). Sparkos did an exchange credit for me and after paying the difference I've got the SS3602s headed my way. Don't make my mistake!

[@moss8448]

be nice to hear what (in your opinion) differences it made with the SS3602s once you got 'em

[@ount252]

@@moss8448 It made the Aiyima A07 a bit clearer on a pair of Jamo S803s (which sounded a bit bloated and muddy before - not the A07's fault, those 803s just aren't great speakers). It definitely livened things up a bit and made for a bigger larger soundstage. Having said that, I'm not sure it's worth the money tbh. For the $160 for the two discrete op amp chips and $80 for the A07 - at $240 you have a lot of other options out there would would probably sound better and give you more clean power. If you are using the op amps on a different product (I know there are plenty of applications), then I'd say maybe they are worth it depending on what you are doing.

[@carnut374]

@@ount252 I think one of these other things to consider though is form factor. You could buy something else in that $250 range but at least for me right now, the A07 is just the right size. Also as another data point, I just did the swap to the SS3602's yesterday and there is definitely a difference in the sound. There was a jump in detail that surprised me because I thought I had it pretty good already (speakers are Polk R100s,) and the soundstage did get bigger particularly front to back from what I could hear. I'm really pleased.

[@ount252]

@@carnut374 That is a very fair point.

[@jaromaston1068]

How are these 80 dollars on the website when he said 4dollars?!

[@jamms2966]

@cheapaudioman - I followed your guide & "rolled" the factory op amps for the Sparkos. It wasn't hard to do & my wife & I both wholeheartedly agree the sound is MUCH better! I also swapped out the factory power supply for the DROK 48v 10A so I cant be sure of the results but our SVS Ultra Bookshelfs are for sure louder as well. Thanks for the great content

[@TurtleWaxed]

You forgot the most important tip! Always take a few pictures with your camera before you take anything off the board. That way you know how the parts went and what the part numbers were (just in case the parts were not the same).

[@genesxse3744]

Randy, just wanted to say thanks for the advice the ss3602's do provide excellent clarity and separation from the originals that were installed. The over all installation was easy to perform and took about 5-6 mins. Keep up the great work as the cheapaudioman it is truly appreciated.

[@MrBenherrmann]

Hey gang....just to let you know, I installed these Sparkos op-amps in my Aiyima A08 also (now do be advised though that the A08 takes 3 of them), and again - a major sound change for the better ensued! The amp now (also) has that class AB sound - that is warmer and more dynamic. Now do be advised that with the A08, it's a bit more tricky. The top does NOT come off. Remove only the front panel (where you'll see the 3 op-amps right towards the front for easy access), unscrew the 4 screws, pull off the volume knob, and unscrew the nut that holds the volume knob control ring in place tightly. Then you pull off the front (it won't come all the way off because wires are attached). Now, reach in carefully and remove the stock 3 op-amps (use tweezers - they work the best), and then you just replace them with the Sparkos ones. At first, I tried taking off the entire top - can't be done, and you have to be very careful because you could damage the unit. Again though - it's another wonderful upgrade, bringing the A08 to amplifier audio levels that usually you'd have to pay 10 times as much for, or more. Enough said! Thanks again to Randy for making us aware of upgrades like this.

[@sarahjh785]

Thank you for sharing your setup. I'm thinking of getting A08. Did you have to buy the leg extension to put in, like the video above for A07? or it doesn't require the extension?

[@MrBenherrmann]

@@sarahjh785 At first I thought about getting some extenders - after all, they are only $2 a piece (or something like that). But surprisingly enough, they go in without the extenders, although it was close. So if you want to use the extenders, that would be fine also. I swear, I'm dumping entirely too much money into Sparkos Labs. I put the Sparkos Labs Op Amps into both my Aiyima 07 and 08 amps, and also, I put one in my inexpensive FX-Audio DAC X6 Mk II DAC, where it made an appreciable sonic difference. I've got two more inexpensive Chinese amps coming and between the both of them, they will take an additional 6 op amp change-outs. Damn, I'm goin' broke here.

[@sarahjh785]

@@MrBenherrmann Thank you for sharing your experience, I can't wait to hear mine when it arrives!

[@bryang9290]

I started off not liking you and almost turned off the first video I saw from you, you are now probably my primary channel for audio equipment content. I appreciate your show and hope you continue to grow. Nice job!

[@ronaldsavage5211]

I recently viewed your video about the $80 Amp and decided to give one a try. I would like to thank you for the info you provided, here is a copy of the review I left about the Neoteck Bluetooth 5.0 Stereo amp. I purchased. Title: The surprise was on me! I purchased this amp for my home office as an experiment, well the surprise was on me. I never expected that this little amp would perform so well. I hooked it up to my Polk S60 towers, this little amp powered them surprisingly well. I then hooked it up to a pair of Energy Connoisseur C3 book-shelf speakers I had stored away and what a surprise I got. The Neoteck Bluetooth 5.0 Stereo amp was where it is supposed to be. I had planned to sell these speakers, I've had a complete change of heart! This little amp breathed new life into them, I had forgotten just how good these speakers could sound. The Neoteck Bluetooth 5.0 Stereo amp punches well above it's weight class. I spent 1 1/2 days listening to all types of music on this combination and I'm still amazed with the sound quality. I highly recommend the Neoteck Bluetooth 5.0 Stereo amp for a small room or office, you will not be disappointed!

[@Ezees23]

I have the Sparkos ss-3602's inside my HP amp (Gustard H20) and they're very good sounding pieces. I am also trying out the Burson v6 Vivids in comparison and they're great too (but in my amp the Sparkos are slightly better - in another component it may be the exact opposite). This is a relatively cheap mod to upgrade SQ on any component that has compatible opamps and DIP8 sockets - much cheaper than buying a different component and most discrete opamps stomp IC opamps, IMO. Be careful to make sure which types of opamps are inside of your component before you replace them - ie: single or duals, opamp inter-compatibility, and orientation. Happy listening...

[@Pokemontraine]

I want to stop and take a quick second to say thank you for all this awesome information you are putting out for people like myself who just don't have the experience or knowledge in audio equipment and components in general such as yourself. I am learning so much from you and gleaning everything I can and I really do appreciate your content so I figured the very least I could do is let you know. So thanks man.. I really appreciate what you do. Keep up the good work.. Lock in another new fan and subscriber from southwestern Indiana.. Peace and love to all.. Joseph M Hodges

[@riccitone]

This is super cool. Never knew how straightforward opamp changeout could be. Particularly cool that there are little risers to accommodate the space needs of the upgrade. Now I want to try this!

[@ilikedeathmetal7458]

You can push the pins on your old op amps into foam packing to keep them from bending further. Then put in bag.

[@williamweber4844]

Thank you for your educational videos, super helpful reviews, and introduction to audio space. I actually bought the amp and the op amps. Hooked it up to some LS50’s I bought for half off. The system sounds fantastic. This is coming from a guy who loves McIntosh and vintage tube Marantz. Great fun!

[@ahuesphoto]

I still have my first Hi-Fi system that consist of a pair of Pioneer 3-Way speakers, that I bought used when I was in college, one of the original Lepai LP-2020A+ *Tripath* Class-D amp with an upgraded power supply, and a Pure Audio A2 Bluetooth receiver. The upgraded power supply reduced the distortion dramatically, even at lower volumes. I moved it to my office and I enjoy it every day, mostly for listening to music.

[@ralphe.thompson5010]

i bit the bullet and bought the risers and chips for my ayima a07. for me, even with equalization which did improve the sound, with some rockish-songs my stock a07(paired with a AYIMA T8 PREAMP) running to DUAL polk subs paired to tsi-100s just had a 'missing middle' and slightly hissy highs and maybe bass that was disconnected in an odd way. i tweaked and tweaked and got it sounding good but was still a little unsatisfied. the sparkos do make a very noticeable difference and to me improvements. separation is definitely increased...just more space and depth to all forms of music. and that 'missing 'middle' that i was experiencing has been fixed. much more balanced sound and seamless sound now. i wasnt sure about these but i am much happier about turning the system on now and listening to music.

[@BigChungusthe3rd]

I've got the missing mids problem with my a07 and monitor audio bronze 2s. Guess I'll try the sparkos

[@dipanjanbiswas6580]

You're an inspiration you know that 👍I was fretting over what tools to use to change op-amps, scared of damaging something - and then I see you using fingers and knives - and thought what the heck - went ahead and did the same - and am all set 😃 thanks for this Randy

[@SolarMillUSA]

@1:40 the term "rolling" comes from "roll your own" as in cigarettes. You could buy the Lucky Strikes or the Marlboro's, or your could roll your own and make your blend exactly how you like it. "Rolling" something is to choose your own components.

[@charlesforwood8546]

I just noticed that Aiyima offers the A07 with a little more expensive Op-amp chip if you order it directly from them. The A07 normally comes with a NE5532 Op-amp and they offer a version with the LM4562. Anyone have an opinion or comment about how the LM4562 Op-amp chip compares to the NE5532? Appreciate any information. Thanks in advance. C

[@ngcolby]

I have done this swap just the other day. Not a huge improvement, but its definitely noticeable, and for $10, why not?

[@TheSinclairmoore]

I’d like to know how much better these opamps are compared to a cheap OPA2134 upgrade.

[@dawolyan13]

Absolutely Randy. What’s old is becoming new again! So many little options on amps that got left behind for convenience sake are popping up again!

[@MarkoVukovic0]

A great upgrade, but Sparkos discretes are a bit pricey at $80 a pop. I'm going with a pair from Orange Amps, ~$58 apiece. Already upgraded my DIYRE HC-1 headphone amp with these, that has the identical IC op-amps and the difference is amazing. They also come with sockets included.

[@scottlowell493]

Does that means the orange are as good or better? If so, how do you know?

[@MarkoVukovic0]

@@scottlowell493 as good or better than Sparkos? I don't know, as I have never tried the Sparkos. I would imagine that they will be very similar. I can tell you that they are a big improvement over the standard IC opamps.

[@Viks021]

Good tip, but an actual side-by-side sound comparison and spectrum analysis graph would be nice.

[@billsmith5166]

It won't show anything that you can hear. You should install these if they make you feel better.

[@cheapaudioman]

I don’t do measurements but it would be interesting to see if there was a difference

[@lukaszcieslak839]

@@cheapaudioman You definitely should do measurements. Without real values of frequency response, noise level, THD, IMD, stereo crosstalk and others, before and after change, only upgrade which you showed is price upgrade. Of course, comparison of those values to values of few random $1000 amplifiers to proof title of video would be also nice...

[@fdski]

Got me some Sparkos op amps en route. 👍💥🔈

[@kennethoransky4881]

Best video I've seen on this topic. I think you're the first to explain it in this detail. Excellent!!

[@cheapaudioman]

Glad you enjoyed it! I feel unqualified. but I appreciate the compliment

[@kennethoransky4881]

@@cheapaudioman You did it successfully? You're qualified.

[@atlasboogie]

I watched this video and bought the supplies, followed your instructions, and just completed the install which took 5 mins. And guess what? It WORKS! The highs got a small bump. The overall clarity got about a 35% increase. What really impressed was the stereo imaging and instrument separation. It was already good with the stock op amps but with the Sparkos.....it took it to the next level. It's surprisingly clear now even with my vintage Dynaco bookshelf speakers. Thank you Cheap Audio Man! This was fun and inexpensive and I appreciate the sound quality even more now!

[@MiguelAngelVelazquez]

Yes, any upgrade from the fake NE5532 will sound better. Mine were fake. How do I know? Because I bought original ones from Texas Instruments and even those sounded better. You could get similar results for less than $30 dollars with 2 SOIC to DIP adapters, two OPA1656, and bypass each Opamp voltage pins(4 negative, and 8 positive) with 1 Elna Silmic II 10uF 35v rated, 1 TDK or Murata C0G Ceramic capacitor 10uF and other TDK or Murata C0G 0.1uF, both 50v rated.

[@rey892]

Just yesterday I swapped out the OPA2134s in my AkitikA PR-102 preamplifier with Sparkos SS3602s. Everything sounds even better now...more clarity, more detail, punchier bass, better soundstage, etc, etc. What was already a fantastic preamp is now "next level." I also replaced the stock opamp in my Topping D50s with a Burson V5i, and that was a game changer!

[@newtongsm]

I am using it with vivid v6 also professional 15amp 48 volts.power supply shocking results thanks 👨 🧍‍♀️

[@robertleon1195]

Just emailed Sparkos, told them I came from here, and asked them about whether my NAD D3020 can be upgraded/modded. Thanks much for the info and instructions! Hope you get to 100k soon!

[@willemvdg9557]

Interesting, pls post the result, I have the D3045.

[@brendanhoffmann8402]

Nice, just ordered the sparkos op amps and risers. Hope its worth it! Just put the Sparkos in my Aiyima. They sound much more refined and rich, less muddy too.

[@toddsell5460]

Randy .5mm pencil works awesome for straightening those pins on chips

[@binuat80]

Hi, I too did the same tweak on my portable XDuoo XD5 Bals DAC cum Headphone amp. I replaced the stock IC OP Amps with Burson Audio - Supreme Sound V5i Dual X2 Hybrid OP Amps. Just as you mentioned, Immediate improvement. I Intend to do the similar Tweak in my Main Music system. I am using the Soncoz LA QXD1 which has Stock (Two OPA1612A dual IC OP Amps from Texas Instruments). I plan to Swap them for (I/V - AD8620 & LPF - PPA1642) these Options are also IC OP Amps but it is tried and tested and there is a big improvement in the audio. Unfortunately I am unable to replace with Discreet cause there is no sufficient headroom in my DAC's casing. I am using the Feliks Audio Echo Tube Headphone Amp as my Pre amp and the Atoll IN200 SE in By Pass mode as my Power Amp. In future, I intend to replace the Jamicon (Electrolytic Capacitors) in the audio signal path of the Atoll Amp with Rellcap (Film and Foil Capacitors) of the same value or greater.

[@triplelindys]

Just wanted to say thanks, Randy. Based on your recommendations, I've picked up a new amp (Aiyima D05), new speakers (Sony SSCS5's) and now, I have a Fluance RT 83 and a U-Turn Pluto 2 Phono Preamp on the way. Sounds real good for my small home office to play some vinyl and the occasional Bluetooth Spotify stream from my phone.

[@HighVybeTribe]

Hi total noob here - what are some reasons why people use a Preamp?? Thanx

[@theemountain]

Could I do this with the [Upgraded Version] Fosi Audio TB10D 600W TPA3255 Power Amplifier? trying to find out if you can swap OP amps in that 1?

[@RichardScott-bk6kw]

I have the same question. Id like to know also

[@kenlane3001]

Hey Randy.........Thanks a ton for this.....Just got mine in today and have yet to fool with the op amps.(oh..it will happen) But over all, I am super impressed with just the stock sound! Best 100 bucks I have ever invested in this wacky love.

[@grhaggerty]

I own this amp and I put 2 Burson V6 in it and it did sound a lot better, (Tho the outside case didn't fit back on). I recently bought an $300 Emotiva class AB amp ( one that you reviewed) and the emotiva sounded better. I also bought a FX 06 tube preamp and I put a Burson iv5 and it sounds awesome. I did this from watching your past videos so keep the tips coming Randy.

[@timc_2433]

which emotive amp?

[@grhaggerty]

@@timc_2433 The emotiva Basx A2 Mini, well worth it.

[@timc_2433]

@@grhaggerty cheers. How are you enjoying it compared to other items you tried?

[@Ezees23]

Oh please, oh please, oh please...tell me where the opamps are located inside the A2M? I have the A-100 (the earlier model) and can't find the opamp locations anywhere. I've got several sets of IC and discrete opamps to try in it and it's frustrating not being able to try them our inside the A-100.

[@jeffreymakuch2493]

Would I believe it? Sure, with measurements to back it up. Sighted, non-level matched A/B tests are so prone to expectation bias, if the difference is as big as you say it will show up in measurements - the Aiyima A07 stock is a decent bang-for-buck TI3255 amplifier, but has clear shortcomings when you don't factor in price as much.

[@stephenmcbride6359]

Please, can you tell me where I can find a 48v power supply for these wee beasties. I have been through Amazon, Ali and more. I can only surmise that I am using the wrong parameters to search with.

[@PetrSedlacek]

"It sounds like a more expensive amplifier." - because it now is :)) The two little op-amp circuits more than _triple_ the cost of the A07. For some, that might totally be worth it. For me? I'm not so sure. I'd probably have to get better speakers first to even hear the difference... Cool little project either way :)

[@jabezhane]

I remember upgrading the $0.50 op-amp in my old Creative labs 2:1 sound system with a OPA2227 many years ago. Certainly made a difference. Not really had the ability to do it again since.

[@christopherorman5769]

I'm told the OPA1656, which you can get fairly cheap, are a phenomenal upgrade here. Is that correct?

[@diamondbracelette]

Or the OP2134. I ordered those awhile back and still getting around to tweaking the A08. But I'm also curious how these cheaper op amps would compare. For those unfamiliar, we're talking $20 or less for the cheaper ones in many cases.

[@diamondbracelette]

@Douglas Blake well then spill the beans DB! My quick search at the time led me to Amazon

[@christopherorman5769]

@@diamondbracelette I bought two off of Ebay along with some risers, and it was cheap. It looks like through Aliexpress, I could have spent even less.

[@christopherorman5769]

​@Douglas Blake Thanks for this. Am I crazy thinking this discrete opamp price of $80 per opamp is expensive? It seems like it. I know JS Audio and others swear by discrete opamps and not chips, but I just wonder about the cost and if the improvement is that significant.

[@diamondbracelette]

@Douglas Blake I just used Amazon like you yourself suggested, and don't shop at audiophile retailers. I'm Basic. Good to know about retailers who sell the chips as non secialized parts tho

[@reep1324]

I can recommend "Oracle II 02" from Aliexpress. No noise whatsoever, against ordinary NE5532. Saved my old headphone lamp amp.

[@valueofnothing2487]

An operational amplifier contains 20 transistors. A transistor can replace a single tube. The operational amplifier is a complete amplifier circuit consisting of many transistors and the ability to control many features of an amplifier.

[@Luinitari]

If anyone is worried about damaging or losing the original op amp, these can always be purchased for likely under five dollars from online supply stores, like Digi-Key and Mouser.

[@EngrRomero]

Great idea of Op Amp rolling. The idea of tube rolling is to introduce more or less distortion to the audio signal. Let do it with op amp as tubes are getting more expensive.

[@hobblyjig]

Have you checked out the A300 yet? I’m looking to maybe buy it but now I’m wanting ti make sure I could upgrade it later on if I did get it.

[@SmallChurch]

Hi from Japan, Randy - Long-time audiophile, first-time viewer. Love your reviews and down-to-earth, easily understable little nuggets of advice, etc. Now a subscriber to your great channel - guaranteed BS-free, friendly, very personable character, too. Cheers! and all the very best from the Far East (Scotsman, but long-time resident...).

[@TheTeddyboy46]

so, i switched out the stock op amps for the sparko's lab op amps. this improvement in the sound is amazing. This was money well spent.

[@cheapaudioman]

glad you liked it. hard to go wrong with Sparkos

[@KarmaElectronics.]

also going to try it with a 48v lithium power humpty. isolated it from the wall all together. thanks for sharing!

[@jimmclain2089]

Good advice! Bought the amp and those op amps and spacers. Easy install and great sound. Thanks!

[@Scrufboy]

Did it! Installed yesterday... Love it! Excellent Upgrade... Thanks Randy!

[@jsclayton]

Success! Sparkos op-amps installed and no magic smoke! Going to be a great afternoon for some listening while working!

[@d.l.2401]

Thanks Randy, Just ordered 2 Dual OP AMPS for the FX AUDIO TUBE-03 Vacuum Tube Preamp. Replacing the Texas Instrument NE5532P OP AMPS.

[@sammybelskus1534]

Hey Randy! Do you think you could do a “Three different pairs of speakers at three drastically different price points” type of video? Like the pinnacle of a $250, $800, $2000, and $12000 pair and compare them? I know that’s four lol. I just don’t really know if there’s a night and day difference in price type of thing and I’d like to see. Thanks!

[@MrIagainsti120]

I got the OPA1656 (Burr Brown) op amp for my AO7. I looked into the Sparkos op amps while researching and found the OPA1656 to be almost identical in claimed specs. only the OPA1656 is $15 and Sparkos are $80. And they sound way better than the ones that come with the A07.

[@moniack]

I've heard that one is popular. I was expecting him to try the 1656.

[@naastradamus]

John, how would you describe the improvement you heard with the OPA1656 Burr Brown op amp?

[@moniack]

@@naastradamus I got an A07 this week, and have some OPA 1656 coming next week. So far the A07 seems very nice, but it's hard to do a direct A/B without an amp switcher. I'm also using a mid to lower level 12 year old Denon AVR as a baseline, so I don't have anything really nice to compare too. The soundstage seems good as it is now. Whereever I may roam at 14s comes almost behind me.

[@vanoverbay774]

I’ve got OPA1656 chips in an A07 and a Tube A3 preamp. They’re a great deal for $15-20 and imo the best bang for the buck.

[@AlbertoFC]

@@vanoverbay774 Looking forward to your feedback as long as you have the exact same setup than me... and I wonder how big the difference would be

[@dutenn]

Yes! I was wondering about the a300

[@tjeerdkruidhof5808]

I have a question. I see you can change opamps in these amplifiers but also in a dac, for example the Geshelli which you also reviewed. Where would you see the biggest increase in sound improvement. I would argue that it might me more profitable to just upgrade the dac? Please let me know 😉 Would I Need to buy 3 (2 for my amplifier and 1 for my dac) or just 1 for the dac

[@Bob.martens]

I got Burr Brown OPA2134 in my Aiyima A04. That tightens thins up. I'd invest in an upgraded heatsink before driving it with anything over 32 Volts...

[@Ezees23]

That's a good "classic" opamp that trounces the normal but old ne5532's. The 2134's are quite a bit more refined vs the 5532's used in most budget gears.

[@RAW_Reality]

OPA1656 vs OPA2134? 🤔

[@Ezees23]

@@RAW_Reality I wonder that too, though I don't know much about the 1656...

[@DougMen1]

Full size amps from the major manufacturers all have op-amps too, in their preamps, as do DACs and CD players, any source with an analog output stage, unless it's a full tube component, like a tube preamp, power amp, or integrated amp.

[@plektosgaming]

They stopped putting large transistors in amplifiers back in the mid 80s. This can be a cheap upgrade.

[@DougMen1]

@@plektosgaming The power amp sections of SS amps still have large power transistors. Op-amps are small signal voltage gain devices. Power transistors are current gain devices, which is what you need to drive speakers. Older amps used small signal transistors in their preamps. Now they use op-amps instead.

[@simonlinser8286]

i actually just came to this realization right now but it makes perfect sense. you gotta realize that when they make chips they make thousands or even a million of them. then they are going to test them and purchasers who buy large quantities will have more say in getting quality, that is meeting the parameters. because there is variability, inside of a chip especially an op amp there could be dozens of resistors, and those are all going to have variability. also resistance varies with temperature, and chips can get hot. by having discrete layouts, you're spacing out that circuit and letting the components stay cool, also you can try and select higher quality or even tune the circuit the way you want it based on the component values. also that's called a DIP socket not an op amp receiver

[@RJ_Chicago]

Randy! OMG this blew my mind! This could be the next thing after tube rolling and aftermarket audiophile fuse swapping. What we need now is a directory of all audio equipment that has opamps that are easily accesable and that would benefit from opamp swapping. Like DACs, streamers, DDCs, everything. Wow.

[@editorjuno]

@Douglas Blake -- As usual, one of voices of reason.

[@mcpoulet13]

I totally agree

[@overbuiltautomotive1299]

yes one can have great sound stuff with a bit of learning how stuff works my favorite thing is the Equalizer.and as internal parts op amp upgrades and capacitors nichicon capacitors i love thaty brand and Audio gold are very nice low esr just nice units

[@MiguelAngelVelazquez]

Yes, a little bit of research and patience pays off. Nichicon KZ and Elna Silmic II are the best audio electrolytic capacitors, and if you bypass them with a C0G Ceramic capacitor they sound even better.

[@overbuiltautomotive1299]

@@MiguelAngelVelazquez thanks ill look into C0G Ceramic capacitor thing .God bless

[@MiguelAngelVelazquez]

@@overbuiltautomotive1299 Ideally it would be Film Poly Caps, but there is no space for those inside the Aiyima, so the next best thing is the C0G or NP0 Ceramics , brands like Murata or TDK. Use aprox 1% of the capacitor capacitance you want to bypass

[@merdith6]

I ordered the 36w 10amp power supply and it is perfect. Thank you for all your help.

[@indianapolisindiana7856]

Do you have a link to the power supply you bought?

[@makarov138]

What that amp needs is one of those tube preamps with the tone controls ahead of it and it will shine britely. I use that amp driving a pair of twelves and tweeters. I got a FX-AUDIO TUBE-03 with rolled tubes ahead of it. We sounding good at my house!

[@kenzilla8096]

Hi. I also have the FX Audio tube -03. It boosts the signal, make the sound clearer and improves base. So does this do what the Op amps do or is this different?

[@DynastyVinyl]

I have learned a tonne from this vlog. Not the least of which is to embrace my budget audio limits,and have fun playing within it. Op amp rolling you say? Me like!

[@foreverendeavors6210]

Impeccable trimming on this video, been looking at an Ayima tube pre-amp, and they recommended a chip upgrade, was just looking into it, awsome..

[@cheapaudioman]

thanks

[@2high2die]

@@cheapaudioman i was noticing your trim too. not bad for an old guy

[@reconbbs360]

Just purchased a used A07 for cheap and I bought the 48v Power supply from Aiyama and the OP amps from sparkos labs. My plan is to use it as a power amp with my Integra DMT 40.7 network stereo receiver. Only reason I'm doing this is because the receiver has zero crossover/bass management and I was able to snag a M&K Miller & Kreisel LFE-3 Electronic Crossover Bass Management Box for dirt cheap. 80hz high and low pass filters. Not the most elegant solution but it should work great.

[@CinemaDemocratica]

I have a semi-related question: I went looking for some of these high voltage high current linear power supplies that Randy has been talking about as an Aiyima upgrade path, and I have had zero luck sourcing such an animal, including on both Amazon and eBay. Am I using the wrong search terms? The amp I'm looking to buy is the Aiyima T9 Pro and the upgrade path for the power supply is 32v9a linear. Anybody?

[@trauma50disaster1]

be sure to practive fire safety as there is a video testing the chip and it's not up to spec, just unplug when not directly monitoring.

[@CinemaDemocratica]

@@trauma50disaster1 I believe that was the T9, not the T9 Pro.

[@birdyflying4240]

I "rolled" my op amps for the opa2604AP (Aiyima 07) and 2134PA (Aiyima tube 3 preamp), great improvement for 12 bucks.

[@ojaiguru]

Have you cracked your T9? What are the options there? Like someone else said, you haven't mentioned it much lately.

[@johndavidlawson]

Thanks for this brilliant and fun video with the life-saving advice about "aligning the notches" and the plug for good music at the end. Upgrade achieved. Mug purchased.

[@chrisrauschebart348]

Hi my friend, you are the cheap audio man, and it would be a amazing thing if you compare different op amps in this device. There are so many cheaper options as the recommended discrete op amp, also a lot of IC op amps would boost the sound in a great way. I am sure many people would like to see what you think about the OPA1656 or LM4562 and also the MUSES8832E for example. I personally would really love to see it. Thanks for your really great content!

[@florin604]

Yeah for example OPA2134PA are much better for a lot less money

[@Pabula]

Question, you installed 2x SS3602 Dual Discrete Op Amp, so its $80x2 = $160. The A07 cost around $80. Adding a higher end PSU could go into $50-80. So upgrading an A07 could go into $320 there could be more options.

[@sainaveenbali]

sqaure space??? but does it have any fidelity in their website??

[@truckyouable]

Got the Sparkos op amps in, wow! Driving restored HPM 60's, Me like! Thanks Randy.

[@Riskybusinessss]

Game changing ! Thankyou so much this is a brilliant little chip. Going to use one of those style amps for a large soundbox style portable speaker. Your video has given the build a real edge

[@smyrnianlink]

Thanks sir. Great idea.. Can I get similar results with a LM4562 ?

[@victorcatalina8510]

I am stoked have this whole project on order the A07 is in hand and sounds ok threw my Sabaj D5 into the xduo mt 602 with Vokshod Rocket 6j1p tubes then to the Aiyima A07. The bummer is the power supply is going to take until June to get delivered threw Amazon (can anyone recommend an alternate power supply or source for the Aiyima one? I am trying to build a desktop setup that outperforms my seperates which my be a bit difficult on my budget :) I use a Rotel RC 995 pre amp with a Harmen Karden PA2000 solid state amp. and a nearly impossible to find info on soliloquy 5.0 bookshelves. Love your show CAM.

[@victorcatalina8510]

I have done the op amp install and love the sound of the sparkoslabs opamp's very nice thank you for your guidance really made a huge difference and worth the money. Still waiting for the up graded power supply but am very happy with my desktop setup now. or for now :) we all know how that goes. Also wanted to mention the excellence of Sparkos customer service which is Sparko himself to be honest this is a night and day difference in sound quality.

[@MiguelAngelVelazquez]

The good thing about the Aiyima is that not only it allows you to change opamps. It also allows you to compare different opamps on each channel. Just use Foobar with a mono addon and then play with windows audio balance one side to the other. If you can hear the difference then perfect. But again as a minimum change the "original" opamps for a real NE5532. Then you can compare against any other Opamp. I mean, comparing Sparcos against a fake NE5532 is not fair, don't you think?

[@prs26]

Im glad i found this channel,,, beginning my Audiophile journey

[@HighVybeTribe]

Does this apply to car audio as well?

[@JoshFisher567]

Great video, especially for people who realize the benefit of something like this. Having built or repaired computers, laptops, and smart phones, this looks no harder than swapping out memory in a computer. You just have to make sure you plug it in the right way as computer memory is slotted to not allow you to insert it the wrong way. Laptops aren't fun to work on and smartphones just plain suc I'm to try and repair. Would this work with the Aiyima A300? If so, would it be the same chip based off amp that the A07 uses or would it be a different chip? I can probably figure it out in a few Google searches but obviously you would know, or figure out way quicker than I could. Also, thanks for all your tips in various other videos. I was looking for some bookshelf speakers. While I wasn't planning to spend what I did on the Elac Uni 2 B52's, I'm glad I did and I've only had them for 9 or 10 days so still breaking them in. They didn't amaze me out of the box but they have been getting better every day. Vocals are crisp and clear. It's just balanced as you stated over and over in various videos. I'm not sure why people think speaker break in isn't real. Think about it, popular materials for speaker cones are paper, metal, plastic, and aramid fiber. Plastic is obviously going to stretch out a bit over time. Paper has more variables. Aluminum is woven very tightly so it will stretch a bit over time. I don't believe I've had a speaker that uses aramid fiber. Personally, I believe speaker manufacturers make the woven cone material slightly tighter than it should be for this very reason. I also have the Sony HT-A7000 and initially I was going to return it. Out of the box. I wasn't amazed. Then Sony announced new rears which are 2 smaller A9'S that run on battery for 10 hours (per Sony) and they are bringing the same software used in the A9's. Initially I didn't get a great Atmos effect but I swear, one day it's like it turned into a completely different sounding speaker. All the sudden I was hearing sounds that were coming 4ft behind my head. A wall is 1 door away so that was new. Anyway, it wasn't great for music, which is why I got the Elac's, Aiyima A300 and the iFi signature one, mainly because it had the right inputs/outputs I needed for my setup. Now I can hook the optical out from my TV to the iFi and with some tinkering around with time delays, get everything to synch up perfectly so it's the best of both worlds for movies. Music is just Elac's. I do wish the wireless Sony subwoofer did have an input but I will just get sub down the line.

[@itsandyme9192]

I missed my chance buying a Sparkos a while back, and I've been kicking myself ever since. I think it was an SS3601, could be wrong. I tend to use the Burr Brown OPA627 a lot in my cheap Zishan Z3 Pro (AK4493 version). I like that more than my LG V20.

[@VEC7ORlt]

FIY OPA627 is a single opamp, you need a twin, or an adaptor, but anyhow 627 is overrated, as with swappping opamps in general, but if you so desire use LME49720, its newer and better, and doesnt break bank.

[@gregoryfuller1136]

The LGV20 really is a classic. Nothing like it before of since.

[@ryanjofre]

I upgraded my 1984 Denon DCD 1500 II CD player with Texas Instruments op amps. The sound quality improvement was even greater than the new DAC & new capacitors. I now have a magnificent Audiofool quality CD player that started out as a $5.00 thrift store score.

[@Pootycat8359]

In the late 70s-80s, TIMD was still rampant, and many amps, equalizers, etc, used op-amps like the 741 (Yikes! Argh .....0.7 V/u-sec!). So, a standard practice was to replace them with 5534s (12 V/u-sec = no TIMD).

[@makarov138]

I recently bought a DAC amp about the size of a box of kitchen matches that sounds BIG as my 100W per channel Pioneer amp! Got a little tube preamp ahead of it and SHAZAM that things sound good!!

[@AndyBHome]

I'm glad Squarespace sponsored today's episode, but I was prepared to see a plug for the Sith Audio audiophile sonic screwdrivers. It's cool though. I'm sure it's coming.

[@AllboroLCD]

I clicked on this thinking you picked up a fancy power supply for this very bad boy! This upgrade makes sense too, as people claim components on these cheaper amps are counterfeit more often than not. Burson audio apparently makes a nice opamp upgrade comparatively priced as well.

[@cheapaudioman]

yes. I have it but I can't get it to fit. I may be able to get it to fit if I leave the top of this off

[@jimfarrell4635]

Yep. The better Burson op amps, the V6 vivid and classic are in a plastic housing which is quite tall so you need to check they will fit before spending your cash. They are extremely good, however.

[@AllboroLCD]

@@cheapaudioman You good with a dremel brotha? The top off method is just fine as well!

[@mikevincent6332]

Texas instruments make the best op-amps available. (OPA series) No discrete component op amp can come close to their specs because the transistors can not be closely matched and this is partly responsible for low THD. Hence a good chip op amp will always perform better.... unless you like the idea of introducing THD. Also the open loop gain of discrete op-amps can not compete unless many transistors / gain stages are used. But that would make the discrete op amp very large.

[@Christopher-bl3tn]

Love the diy videos! I’m cheep as well and enjoy building and improving My audio stuff as much as I do listening to it. Keep up the good work!

[@thisiskaos9249]

How does Aiyima A07 with upgraded op amps compare with Fosi Audio V3 on Klipsch RP 600M II for hard rock and heavy metal?

[@JR-ho5qm]

Cool! Can this be done with the SMSL AO200? I like mods! 🔈👍🏻

[@cheapaudioman]

you'll have to check. technically it can be done with any amps that contain op amps which is about any of them. they don't all have op amp receivers soldered into the board so some are much harder to change than others

[@jaytruesdale5587]

Hey Randy! I was looking at the manual for the Aiyima A07 and noticed that it says the 3.5 mm jack on the back is an output! I found a cable with a stereo 3.5mm plug on one end and one RCA plug on the other end. I plugged the RCA plug in to my Sony SA-CS9 subwoofer and the other end to the AUX input on the back panel of the A07. The subwoofer started working but unfortunately only the right channel on the power amplifier had any output. Any ideas where to find the correct cable?

[@vicjames2743]

What difference did the sparco op amps have over the stock ones. Better Slew rate ???

[@WisGuy4]

$240 can buy a quite nice used Rotel, Cambridge Audio, NAD, maybe even Arcam etc… amp or receiver on eBay that I suspect would be superior in most ways to this budget amp with the upgraded opamps. Having the latest and greatest is not really necessary when it comes to amplification and there are plenty of 20, 30 or 40 year old designs that have outstanding sound, even if they don’t have built-in Bluetooth receivers. When I saw how small and relatively basic looking these upgraded opamps are, it seemed almost certain that there is tremendous price gouging for the sake of slapping an “audiophile” label on the product. But DIY upgrades are certainly an interesting topic and there are a number of posts here that make suggestions for upgrades at vastly lower prices than $80 each. I would certainly try one of those recommendations first before spending $160 on what looks to be about a dollar or two worth of parts.

[@gklinger]

The Sparkos stuff is outrageously overpriced and spending $160 to upgrade a generic $80 amp borders on insane. A more powerful power supply and a few bucks for better op amps, sure. As you pointed out, if someone has $250-$300 to spend they can get a very nice, used AB from a quality manufacturer that will blow this Ayima stuff out of the water.

[@cheapaudioman]

@@gklinger guess you’ll never know unless you try.

[@jd5787]

Do you need to change the power brick for the amp after you roll the opamp? (I have a 32v brick with my a07, what shall I do if I roll the opamps?)

[@cambodragonaudiophile8475]

Probably everyone watching already knows this, but you can run the A07 in bridged mono without any mods or flipping switches or anything. What this means is that these things really could be just about future-proofed: You can roll the op-amps as they continue to improve, you can upgrade the power brick, and you can get a second one and run them as monoblocks.

[@danny51577]

I'm contemplating picking up a couple of these as surround sound amps. Would you suggest using these as surround amps, and how would you go about bridging these amps?

[@cambodragonaudiophile8475]

@@danny51577 I should probably delete this because I had someone say, in another thread, that while the A07 will appear to operate when it's shorted (generally a bridged-mono operation should be attainable just by connecting the negative speaker lead to the opposite channel), the op-amps aren't isolated, and as such it will quickly damage the amp beyond repair and may actually be dangerous.

[@joelcarson9514]

From one model to another or from one manufacturer to another, the very same part number Op-Amp may be in circuits that are somewhat different in the way that the signal input and output are handled electrically. A replacement modification like this may or may not act in the same way electrically. Also, stacking a chip socket into onboard chip socket will subtly change the loading on the signal inputs and outputs of the circuit by lengthening the signal pathway. This may or may not cause issues. Also, the dual stack of the discrete Op-Amp replacement and the additional chip socket has raised it up above a well designed circuit board with signal traces and ground planes that minimizes interference from other components in the power amp. Basically, from one piece of equipment to the next, swapping Op-Amps with another model number or with a mini discrete piece like in the video can result in better sound, no apparent change or maybe even sounding worse than the original chips. YMMV

[@MrBenherrmann]

All I can say is OMG!!!!! Randy - you wonderful creature you! I quickly ordered this Sparkos op-amp (and riser) set for my 07 - and to be honest, other than perhaps some minor differences, I wasn't expecting much beforehand. However, after the two op-amps and two risers arrived, the installation was a cinch - but more so, I was blown away at how a major "sonic veil" was now lifted from the music. When you stated that the effects would be immediate, you weren't kidding. Without exaggeration, I can see where the A07 now sounds like that proverbial $1000 amp. The sound was not only more open and immediately noticeable, but the sound-staging now envelops the listener, making the performances more intense and engaging. I can't believe this - what a difference this simple change out made. As a listener of classical and jazz music, even the instrumental timbres are improved (again, that lifting of a sonic veil). I can no longer look at my A07 as just a halfway decent cheap-sounding amp. This A07 now competes with a half dozen other amps that I have - including two costing $1500+. How can this happen (asked with a smile on my face)? But I must realistically add that even with the op-amp rotation, overall - in particular, when the full crescendo of a symphony orchestra comes together, the A02 (regardless of op-amp) loses clarity and becomes a bit muddy (shame really) - but that's an Aiyima thing, not due to the Sparkos op-amps. Since I also have the A08 (thanks again Randy), I will have to see if the same scenario can occur with the purchase of these Sparkos op-amps. Now that will be interesting, to say the least. It's postings like this that provide a tremendous service to a wide variety of audiophiles. Normally, I would have overlooked this, somehow surmising in my little mind that spending almost twice as much as the basic amp cost, for a few little tweaks, just wouldn't be cost-effective. But I am so glad I ignored that little voice in my head - as this elevates the A07 into a higher-level sonic creature. Randy, I'm glad that I've become an ongoing watcher of your reviews and have subscribed to your channel. After a year of watching another channel (the one where all you see are the forearms and chunky hands of the reviewer because he wears a go-pro on his head (who by the way, has elevated the F word to new heights - i.e. using it as a verb, pronoun, noun, adjective, and much more), your reviews (and humor) are a refreshing change. You actually talk about sound qualities, rather than features alone. Ben Herrmann Fuquay-Varina, NC

[@User_not_found_403]

Question - What does each of the two dual op amp sockets in the Aiyima A07 correspond to? Is one socket for the input amplification section and the other for the volume section? Or something like 1 opamp for left and one for right channel? In my Burson Funk one is for the input stage and other is for the headphone volume. Would be nice to know for those who only 1 to roll 1 opamp to save money or experiment mixing opamps to tune the sound to their taste.

[@MiguelAngelVelazquez]

Unfortunately, you need 2. One for Left and one for Right channel. Each opamp has 2 two "sections". The first one acts as a buffer or Unity Gain amp, the second section takes the output from section 1 and creates an inverted signal. Now, both signals feed the TPA3255 differential inputs. This allows a bigger input signal.

[@mikeortiz2139]

Very cool. When I finally get an A07 and move away from active speakers I'll plan on making this change with them. I am curious on the difference the upgraded power supply makes to the A07. Maybe compared to the A08 or whatever else is CAM approved.

[@tomkershaw4384]

Rollin' Rollin' Rollin' , keep those op-amps Rollin' All my jokes are stolen, ASMACC !! Thanks Randy for making our hobby funner and funner !🤣