Two surprises for me. 1st) The LHY Discrete, overall the best in all aspects, purer analogue amplifier is not possible, bass, mids, highs all there with speed and precision without hardening. 2nd) Parallel ne5532, no comments just one, just perfect sound for the price and much better than other competitors at 10 & 30x the price of this one.
The NE5532 is, without a doubt, a really good audio OpAmp. But it's design is quite old. Newer designs like the LM4562 has a better SNR and faster slewrates. But be carefull, faster OpAmps are prone to oscillate if you don't have a suitible circuit and PCB. You normally can't hear this oscillation (it's in the MHz region) but your OpAmp (and following stages) will get very hot and could burn out!
Interesting video thanks for your efforts. I am an audio electronics engineer and am used to critical listening. IMHO the stand out Op Amps were the LT, Sparkos and Oracle. The LHY was excellent but impractical for the class D chip amps and IMHO not worth it. The NE5532 has always been a firm favourite with me and IMO sounds as good or better than a lot of Burr Brown or Analogue Devices Chips, especially for the price. If you parallel two NE5532 you will reduce the noise and clearly improve the sound, but the fact that they get hot means they are loading the power supply (and this troubles me; probably requires a decoupling capacitor on the power rails). Based on price, I would say the LT or Oracle are winners for me.
It does sound really good - no lie! However, I just tried that in my Fosi ZA3, and after 10mins of playing music they were super HOT! To the point that when you slid open the case and touched them, you immediately went "Ouch %@#$!" I even had a thin piece of cardboard between them when soldering them together to have an air gap for heat concerns. (I removed the cardboard after soldering and placed into the amp, ofc). I then tried a single 5532 on the Left and a double on the Right - same issue. The double stack got super hot and the single was warm. Not sure if I would recommend two op-amps soldered together.
@@3ndure1T they sounded good but not as good as burson v7 classic. They did get hot but since i am still able to touch them briefly i don’t think they getting hotter than when i soldered them. Fun experiment! They did sound as good if not better than muses02. I am little disappointed in muses.
@@ColocasiaCorm Yea, soldering them together they got hot as a mofo too! lol I remedied that by using needle-nose pliers while soldering. :) Yea, I wasn't impressed with the Muses02 sound. I thought the Burson v7 vivids were really good as well. Even the Sparkos were good. Just wish both were cheaper... Keep us updated on what you do. 🙂
This double opamp is very intresting! Back in the days, about 1975, I was a kid building hifi. At that time we had a magazine in Sweden called Radio and television with a lot of intresting drawings, do it your self things. I found a RIAA pre amp that I built and believe it or not. Designs was a lot of shitty transistors in parallell. In total I should say about 30. My RIAA had clearer sound and sounded better than my Kenwood. It also had a much lower noice level. I have tried to find that RT with no success. RT magazine have som public sources on internet. And yes, this double opamp really works and I was a little skeptic in the beginning but I think the difference is amazing! I can hear it and my hearing is not the best after listening to, to much noice in my childhood 😅. Keep up all the good work!
Awesome, I love these. Best yet. I thought A was the sparkos, as it seemed to play faster. Found some I would definitely like to try. Thank you for a great effort.
WOW - was NOT expecting the YT compression to make that big of a difference, but boy, was I wrong. I have listened to so many clips comparing speakers or other kit on YT and was impressed that I could hear a difference, so much so, that I thought there might be a slight difference but I was NOT expecting it to be THAT big of an improvement in SQ (sound quality). Just started the two, YT and G Drive after your pause and comment section, and the air in the G Drive (uncompressed) video was shocking compared to the YT video. I will watch both all the way through, but just had to stop and comment about the difference I'm hearing. THANK YOU!
This time I waited for your conclusions in the video. I am amazed by the Paralell NE5532. The other one that stands above the rest is the LHY Discrete Double Opa. In the test you did with the new Fosi V3 mono I liked the Muse02 better, while with the ZA3 mono it was Sparkos. 👉A Paralell Muse02 can be amazing. You should try the same with OPA828.
Tak sobie oglądam Pańskie filmy i nawet skusiłem się na tani wzmacniacz klasy D- mega pozytywne zaskoczenie. Wielkie dzięki. Jakość nagrania robi wrażenie . Oczywiście muszę wtrącić swój mega podziw i szacunek za stworzenie tych petardowych zestawów głośnikowych. Słuchałem filmów na słuchawkach i na swoim zestawie Hifi, w każdym przypadku brzmią idealnie. No i ten design. Życzę wielu sukcesow. Podpowie Pan jaki to utwór tak pięknie sobie przygrywa w tym teście ?
I have never heard of parallelization before so that was news to me. I use Muses 02 in my DAC. I took all the NE5532 op-amps out of my ZA3, so if I ever learn how to solder, I guess I'll have that project waiting for me.
It's great that you tested everything so quickly!! (paralleling of opamps) I understood the topic a little and in general this is not entirely correct electrically, what you said about high temperature is precisely a consequence of this. But it sounds!! also my audio engineer friend commented “If he literally just connected the legs of the chips, well, he was lucky. This op-amp survived that. But don’t rush to accept a simple explanation as a recipe for all occasions. I insist that doing so is not correct. The total current consumption should increase significantly. Connecting the outputs directly is analogous to a short circuit. Most likely, in this design the through current of the output stages of both op-amps has increased significantly. But not to a critical value - operational amplifiers usually have an output current limitation. But increasing the current through the output stage usually has a beneficial effect on quality. In general, there are prerequisites for an increase in quality. But the method is barbaric." so be careful.
I'm scratching my head about the heat issue. There is only so much juice available in that part of the circuit, so, powering a sandwich of two OP amps, instead of one, should generate less heat, since two devices are using the same available power. Why is it overheating ? We need an electronics guru here
@@jmbuchela5424 i asked gpt4 regarding this and this is what it has to say "Stacking op-amps can lead to poor thermal dissipation, potentially causing overheating and reducing the lifespan of the components"
yes, because in an analog mixer you need a ton of them and they are really cheap. that is the main reason. if you buy a reel of 2500, it costs 0,155€ per piece if you buy an OPA134 1,36€, that is almost 9-fold the price. LT1028: 7,91€ ==> 51 fold the price. it is not the best, but great value for the money. if you have a 12-channel mixer and need 5 per channel, you need 60 in total. this is the point where you realize that cost adds up.
How did you parallel the NE5532?? Using dual single to dip8 adapter or patiently soldering with an Iron and lead? I'm tempted to do it since I have the chips ...but I doubt soldering is doable for me...shaking the hell out on the iron...Also, I'd be curious to see the results with some Akliam LC5 (18$)
I'm looking at getting the Geshelli J2S or J3. There were 3 (or 4) op amps that stood out to me and one in particular. I'm curious to know what your top 3 were, just to see if we like the same sound. If so, I'll definitely look at the SS2590 Dual Pro. Thanks.
Excellent work. Thanks for sharing. As for my experience, since I prioritize on vocals and don't have too much money to spare, I had used 2 pieces of Muses 02 op amps and 1 Oracle II, for my tube pre-amp (for Turntable) and use 5 pieces of Oracle II for my Douk Audio T8 Pro 7 band tube equalizer. That's all good enough for me. Cheers
I think I still prefer the OPA828 series, would be interesting to parallel those though - I mean if that paralleled NE5532 from 1977 can sound that good!
@@VirtualHiFi I have now had a chance to compare the Burson v7 Vivid to OPA828 - and it can't hold a candle to the OPA 828 for the high end that's above 450Hz. The speed and pin sharp detail and clarity of the 828 is on a completely different level because of its ultra-fast slew rate of 150v/uS. But that's playing fast, complex, recent and well recorded 24/192 EDM music/ vocals. If you were playing something slow and older the warmth and spatial nature of the Burson V7 might suit better. For me, I ended up using the V7 in an active cross-over to drive the sub-base below 70Hz and they do a mighty fine job of that.
I'm sure the op amps do indeed improve the performance. However, I must make a point that the rest of your system (DAC, Speakers, and upsampling to dsd 512 via HQ player) is what truly make these demos sound excellent, even with TH-cam compresion. Those in the market for an inexpensive amp, such as Fosi, will not be pairing the amp with $15k worth of speaker, dac, upscaling music server. I'm far more interested in comparisons of Solid state amps and dacs in the $2-5k range. I appreciate your excellent hard work.
Listening to the TH-cam video, my favorite was the Oracle 02 followed very closely by the Burson v7 Vivid. On some of the tracks I preferred the Oracle and on others I preferred the Burson. The LHY is third for me only because it sounded a little too dark. I'm listening through a SET tube headphone amp, so that may account for the sound with the LHY being too dark for me on my system. *******After Downloading the Uncompressed File*********** With the uncompressed audio on the downloaded file, all of the tracks sound better. My top 3 choices are the same as when I listened on TH-cam, except the order is reversed so that the LHY Discrete Double is my top pick, followed by the Burson v7 Vivid, which is followed by the Oracle 02. With the uncompressed audio the LHY has a little darker background than the other two, but the tonality of the music is not too dark as it was with the TH-cam video.
Another Kinki Studio Ex-M1 Int.Amp which has 4 single op-amps and 1 dual op-amp. I have been rolling Sparko's, Staccatto and recently Burson's new V7's / Vivids and Classics. Preferred line up is Burson V7 Vivid Dual with Burson V7 Classic singles x2 and 2 Staccatto singles.
Great video and I agree about the parallel NE3352, it sounded great, that punchy deep bass and crystal clear vocals, I just loved it. I can solder but I don't really want to for many reasons, including heat as you mentioned, so are there any off the shelf single to dual op-amp pcbs that can accomplish the parallelisation without having to solder? I see some stuff on ebay but I don't know if it is correct. Any further info will be appreciated, thanks for the video.
Paralleling 2 OpAmps reduces the noise (i think by the squareroot of 2, but i am not sure) and increases the output current the OpAmp can deliver to the load. So it is easyer to drive low impedance loads, but i don't think that this is significant for any better sound in this case, since the TPA3255 inputs has an input impedance of about 20k (according to the datasheet). But i won't do this with the discrete OpAmps, unless you really know what you are doing. But hey, if it helps 🙂
Well each one of us has his own taste and for me the Staccato is the one closer to truth and the only one without listening fatigue. I don't like operational amplification, opamps.. I am a SET guy but I must say that I could live happily with the Staccato. The others are trash for my ears and my brain. Regards
Excellent test. I have done some basic comparisons using the belly hatch of a Aune X8 DAC. And more serious testing of V6 Vivid versus Sparkos 3602 and 2590 in a Burson Conductor 3XP. Since you are using flying leads and have to leave the case open anyway, You should try the Sparkos Pro 2590. I believe you would find them to be the best. But they are very large to try to fit 4 of them inside a DAC for instance. I have compared them to OP1656, Burson V6 Vivid and Sparkos 3602 and the 2590 is in a league of its own. Especially if you solder on a pair of extra 100 uf caps onto the board in addition to the chip caps that are already included and add a simple ground bus wire between them which dual op amps do not have a pin to supply ground to the chip. The power supply on the board is undoubtedly well bypassed to ground on any high quality component, but especially when using the addition of flying leads taking the op amps away from the board, bypassing the Sparkos Pros right on their board makes a still further improvement. Even with the TH-cam compression I could still hear many differences and do agree that the LHY was the best. The Burson V7 Vivid seems a good improvement over the previous V6 so I ordered my new (yet to arrive) Soloist 3X GT amp with them and the SP2 regulators as an upgrade and was hoping they would be good enough to avoid the urge to fit a set of (6!) Sparkos Pros but we shall see. It would be expensive but maybe I could get something back from selling the V7s I didn't like the Stacato or the Oracle. The double 5532 was better than using just one alone and makes me wonder what a double or triple OP1656 might sound like.
I have single to dual adapters I've tried. Tone is very subjective and largely depends on synergy with the rest of your system. But in terms of soundstage height, depth, width, and the layering clarity of spacial cues, dual OPA1656s sound 80% as good as the Sparkos. NE5532s probably closer to 60%. I need to try the Muse02s. Also have Oracles on the way. I've not heard the Bursons or LHY. Very interested to try the Sparkos Pros.
What about NE5532 and Muses02 soldered in parallel, are they compatible? CanEver Audio make parallel solid state and tube circuit in their top model DAC with great result
I … clean, details, clarity with wide sound stage but bass is normal. D is right bass than I but somehow I felt for I than D … but F is kind of bad ass for bass !! 😀 I rate no 1 is for I, 2 is for D and 3 for F .. Sorry I can’t listen til end but Thanks you for your video. Much appreciated
i thought the first 6 were pretty close through yt on my set up but then each one after was a tad better than the one before and j being the best but wow if those oracles are only $10 that might be the way to go if you need several. thanks for doing this test you are awsome and your sound clips are the best
Just wondering whether you think Op Amps make any different to sub-woofer output? Do different Op Amps perform better? I watched one of your previous videos and removed the XLR and sub-woofer op amps from my ZA3 and definitely sounds better. But wondering whether I would have a better sub-woofer experience if I used better Op Amps. Thanks,.
I have the Burson V7 Pros upgraded from their V6s. I experimented with the Classics and Vivids. For my DACs, I experimented with all four Vivids, all four Classics and two Vivids (LP) and Classics (I/V) and vice-versa. For me, I ultimately settled on the Classics (warmer) in the LP stage (filter stage) and the Vivids (brighter) in the I/V stage (driving stage). It's a great combo, and it would be neat to see a video by someone experimenting on mixing amps like this instead of just here are the opamps. Enjoy. This could be a neat video for you. Mixing Sparkos with Muses or LHY with Burson, etc.
Coincidentally I tried playing between the vivid and classics for my soloist 3xp and found as well V6 classics for the input stage and vivid for volume gain works best.
@beherit98 I see. It's cool to see that I'm not the only one to have that opinion. I initially had a Sound Blaster AE-9 for my custom-built PC, and I was curious about the op-amps. I did some research and found that they can change the sound signature, and that's when I ran across the Burson V6s. I decided to purchase a set of each for Vivids and Classics. I found all Vivids to be a bit overwhelming, all Classics a bit too rich. Classics in the I/V and Vivids in the LP lacked a bit of punch. When I reversed this, I felt it was perfect (for me, anyway). Later, I upgraded to the V7 pros, and it sounded even better. I was initially running with a pair of Audio Technica ad700x. I upgraded to a Sennheiser HD 6600S2, and that was even better. I have a 5.1 surround sound system in my room (Onkyo TX-NR6050 with Paradigm Cinema CT70 satellite speakers), so all I used the AE-9 for was headphones. Unfortunately, the ACM unit bit the dust a couple of months later. I decided to try their dacs. New to this, I purchased a demo unit (more than half off) of the Composer, believing it to have a headphone jack. I was wrong. I even purchased a set of V7s Classics. When I realized my mistake, I gifted it to my dad for his birthday/ Father's Day gift as both were around the corner. He, too, agreed on the orientation of the op-amps. I ultimately settled on the Playmate 2. I swapped out the op-amps from my sound card to my new dac, and I must say, it put the AE-9 to shame. I'm glad I switched. Don't get me wrong. The AE-9 is fantastic for a sound card, but I certainly didn't realize how much of an upgrade I was getting.
This video was invaluable because I'm considering a Geshelli DAC and one of their options is the Burson V7 Vivid. Along with Parallel 5532 (which I've never heard of), the only other op-amp I gave a 10 on listening test was the Burson. I had a feeling that would be a sleeper... What was really interesting is I gave the parallel 5532 a 10 but the single one a 7. Is that modified parallel one available to purchase
I wonder what was your idea to record from an amplifier and loudspeakers rather than to plug to an AUX output directly in? E, B - premier league (and you've made something special to 5532 or made a mistake; most likely you've messed up B and I) F - special guest G, D, J - 1st division I, H, A, C - hobbyists PS The conclusions were made before I read the results, and I'm sure about B and I
Can you parallel two different op amps together to mack a different sound like Muses 02 and NE5532? I can't wait to see the video when you parallel two Muses 02.
Cool test, thanks. Do you think there's room to fit a small aluminum dip 6-8 heatsink on the Parallel N5532 op amps with the V3 Mono enclosure. If so, max height for aluminum heatsink? I guess you could try to get really crafty and fit a solid aluminum piece that would fit between the opamp and case, try to transfer heat directly to enclosure. tricky tho.
Hello, first of all, there is no one who makes a wide variety of detailed comparisons in opamps, it was a very nice comparison video. But it would be great if you write the opamp names like A,BC,D... It would be great if you at Least specify in the video description which opamp is playing while playing, thank you.
@@tofffsymagic1099 Yes, I partially agree, but it would be great if it was stated in the descriptions which opamp plays in the A,BC,D... options, because not everyone has the chance to buy expensive opamps and it is impossible for them to do this. It is also impossible for these opamps to recognize their sound, I look at the issue from this perspective. Of course, I respect the effort made, thank you very much.
@@KeithHeinrich i'm so sorry, I didn't watch the video until the very end, I was dreaming that opamap would write names while I was playing opamps, so I didn't watch it until the end of the video, obviously.
Even better if you get the two ic opamps stick a piece of copper tape on top of both oamps making sure they're not going to touch any of the pins except the ground pin and solder it to the ground pin. and you can leave a gap between both of them it shouldn't be a problem still enough room with the pins just about also putting a small polystyrene cap across VCC plus a minus of 0.1uF makes a big difference reduces inductance
Depois de ouvir todos e saber a identificação de cada um, peça para alguém tocar aleatoriamente as faixas, um novo teste cego, se você acertar mais do que 10% pague um excelente jantar para você mesmo. Acho que você vai ficar sem comer. As diferenças são muito pontuais. A depender da track um ou outro se destaca um pouquinho mais.
Thank you for this excellent comparative, i prefered the A with the Burson's wich are more bassy, what a surprise! Amazing! The first 20 seconds of listening, I asked myself WHAT IS THIS? Even before to listen the others. I've watched and re-watched your previous tests and samples dozens en dozens of times. Does somebody know if it is possible to buy a dip8 opamps paralleling adapter? I'm so curious how opamps paralleling could sound on my Aiyimas A07 Max, now i hesitate to buy some Bursons or wait with my Akliams LC5 until you publish more paralleling experiments
Hello, last night I soldered the NE5532 opamps in parallel and installed AIYIMA A07 MAX for testing. I get very high quality sound in monoblock mode, but to charge the 48v 5a adapters of Fosi Audio Z3, but AIYIMA A07 MAX gets very hot because it is connected to the 48v 5a adapter. Frankly, I don't care about overheating, I'm testing opamps🙃 What I'm very curious about is, does it work to connect parallel to single-channel and 2-channel opamps? and if it happens, I have MUSES01 MUSE02, MUSES03, OPA2134, LM4562, LME49720, OPA1612, OPA627, OPA828, LT1028 opamps.
Thanks a lot for your work! Sad that there isn't Burson v7 Classic, because I try to choose which ones to order for my Playmate 2 and Arya Stealth. But it's not possible to include everything.
Paralleling devices is not a new concept but in this case some precautions should be taken. The LT1028 datasheet should have something similar. The example with the TDA1543 is not an apples to apples comparison. The TDA has a current output and when paralleled the currents sum up. In the case of an op-amp the output is voltage. In a perfect world the output would be zero if the input was zero but in real life the output has a DC offset that varies between units. Connecting them directly will cause due to the voltage difference even if it is just a couple of mV a high current flowing from one output to the other. In most cases this can be mitigated using balast resistors.
My 100% honest blind impression was that A (parallel 5532) was great-sounding, then B (NE5532) and C(LT1028) were poor sounding (low resolution, veiled), then all the rest were great-sounding again depending on one's tastes. I was shocked to find out A was parallel 5532, and since I have a ton of 5532 around, I will solder them together instead!!
I had A down as the standard NE5532 Op Amp in all but track 2. Think I preferred B single to A parallel. My favorites however were D F and G so smoother sounding amps, not a surprise as I prefer analogue.
I'll check that for sure later on but price wise the oracles are awesome and since 4 are needed Id think about them. but that is a great video topic best opamps for the V3 monos. I'll do that for sure ;)
Hello, I'll update it in about 2 weeks. You can do it yourself by soldering 2 on top of each other. But I developed a converter so that you can use basically any opamps and parallel them. Also I created a Supersonic opamp that use 4 dual ne5532 in parallel and I'm testing them at the moment. They all will be available in about 2 weeks since I already have first batch ready.
@@VirtualHiFi Thank you so much for your fast answer. You are the best !!!!! Continue your nice work. Another question, I have two ZA3 at the moment it is worth it to change them for the V3 monos ?
Es gibt viele DAC die haben 16 op Amps parallel geschaltet verbaut.Wenn man das noch durch deinen Trick verbessern könnte wäre es noch besser…dann mit 32 op amps. Dadurch steigt auch die Lautstärke des op amps der sowieso keinen Ausgangsübertrager benötigt. (bei Verwendung von 16 parallel geschalteten op amps )
muses 02 totali changed my aiyima 07 max how is this possible i have mutch more power full and expensive amps and i dont like them better this is cracy wounder how your loudspaker sound .wounder if i should diy some li
Anybody else here get a Fosi v3 monoblock amp and received 2 Muses02 chips? I bought 2 amps so they sent 2 chips, does anyone know if the two Muses02 chips are both supposed to be installed into one amp? Or is one chip for each amp? The reason I'm asking is because when you open the amp, there's 2 chips that look like they can be replaced by the Muses02. I know this is probably stupid, but this is my first time using an opamp
You got free opamps due to success of Kickstarter campaign. I'd put them one each in the first slot from the front of the devices. watch out for bendy legs and alignment. the opamps Has little circle dot in one of the corners and that mean it's leg nr. 1 so you have to alight the muses in the same way.
@@VirtualHiFi Ok sounds good! I reached out to Fosi yesterday and they sent me a response with a picture saying "The op amp in position 1 serves to convert the unbalanced signal from RCA into a balanced signal. The op amps in positions 2 and 3 are responsible for adjusting the tone. If you're looking to change only one op amp, it's recommended to replace the one in position 2. However, if you replace both op amps, the effect will be more noticeable. Positions 2,3 can be replaced with different chips. You can personally experience changing different op amps and op amps in different positions to feel the changes in the sound." In the picture they sent, Position #2 is the middle chip that's next to the bro 2200uf 63v capacitor.
I tried a lot of opamps and my favorite is a hdam clone and burr browns, no one take a look of the bandwidth of transitor speed and the higher the more natural they sound, burson and soarkos are pure snake oil for me
Welllll... After putting opamps through the amp and speakers, it's damned hard to really see a difference, if the opamps are anything like " decent"... No measurements, so we must trust this long chain of devices with much worse performance than 99% of opamps... Speakers and ears...
Would be cool to try to set these up using true blind ABX testing, maybe with more amps and something like a Van Alstine ABX Comparator. Get a few people together, make a TH-cam video showing the process, results... Trying to listen through TH-cam on headphones just doesn't convince me, didn't even bother trying.
Sorry but if anything, the differences are very subtle. Listening thru headphones... I'll have to listen to your google file'd version... I believe you that you can hear a difference in 'real life' in front of your speakers, but not really over YT. I like the idea of soldering two cheap op amps... as an experiment... But how did your now $4.00 op amps compare to the more expensive ones?
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I was wondering if you make triple NE5532. Will it be further better?
The parallel 5532 would be the JRC OPA5532 Dual op amp on Audiophonics website right?
Two surprises for me.
1st) The LHY Discrete, overall the best in all aspects, purer analogue amplifier is not possible, bass, mids, highs all there with speed and precision without hardening.
2nd) Parallel ne5532, no comments just one, just perfect sound for the price and much better than other competitors at 10 & 30x the price of this one.
The NE5532 is, without a doubt, a really good audio OpAmp. But it's design is quite old. Newer designs like the LM4562 has a better SNR and faster slewrates. But be carefull, faster OpAmps are prone to oscillate if you don't have a suitible circuit and PCB. You normally can't hear this oscillation (it's in the MHz region) but your OpAmp (and following stages) will get very hot and could burn out!
Burson v7 Vivid (I) is the best natural sound for me.
Thank you for this big test for us 😀
Interesting video thanks for your efforts. I am an audio electronics engineer and am used to critical listening. IMHO the stand out Op Amps were the LT, Sparkos and Oracle. The LHY was excellent but impractical for the class D chip amps and IMHO not worth it. The NE5532 has always been a firm favourite with me and IMO sounds as good or better than a lot of Burr Brown or Analogue Devices Chips, especially for the price. If you parallel two NE5532 you will reduce the noise and clearly improve the sound, but the fact that they get hot means they are loading the power supply (and this troubles me; probably requires a decoupling capacitor on the power rails). Based on price, I would say the LT or Oracle are winners for me.
Thanks so much for doing this. That's a lot of money in op amps for people that just own one of the cheaper amps.
I totally agree, and I do that so that one can preselect or even choose the best sounding one without all testing hassle 🤠
Dude double 5532 was incredible. What a brilliant idea to stack them.
It does sound really good - no lie! However, I just tried that in my Fosi ZA3, and after 10mins of playing music they were super HOT! To the point that when you slid open the case and touched them, you immediately went "Ouch %@#$!" I even had a thin piece of cardboard between them when soldering them together to have an air gap for heat concerns. (I removed the cardboard after soldering and placed into the amp, ofc).
I then tried a single 5532 on the Left and a double on the Right - same issue. The double stack got super hot and the single was warm.
Not sure if I would recommend two op-amps soldered together.
@@3ndure1T I’m just about to try it. Just soldered them together this afternoon. Wish me luck!
@@ColocasiaCorm Good luck there! Hahah. Let me know. ;-)
@@3ndure1T they sounded good but not as good as burson v7 classic. They did get hot but since i am still able to touch them briefly i don’t think they getting hotter than when i soldered them. Fun experiment!
They did sound as good if not better than muses02. I am little disappointed in muses.
@@ColocasiaCorm Yea, soldering them together they got hot as a mofo too! lol I remedied that by using needle-nose pliers while soldering. :) Yea, I wasn't impressed with the Muses02 sound. I thought the Burson v7 vivids were really good as well. Even the Sparkos were good. Just wish both were cheaper... Keep us updated on what you do. 🙂
One of the best Op Amp comparison videos!
This double opamp is very intresting! Back in the days, about 1975, I was a kid building hifi. At that time we had a magazine in Sweden called Radio and television with a lot of intresting drawings, do it your self things. I found a RIAA pre amp that I built and believe it or not. Designs was a lot of shitty transistors in parallell. In total I should say about 30. My RIAA had clearer sound and sounded better than my Kenwood. It also had a much lower noice level. I have tried to find that RT with no success. RT magazine have som public sources on internet. And yes, this double opamp really works and I was a little skeptic in the beginning but I think the difference is amazing! I can hear it and my hearing is not the best after listening to, to much noice in my childhood 😅. Keep up all the good work!
Amazing information and comparison between these opamps. Thank you so much for sharing this with us all.
Awesome, I love these. Best yet. I thought A was the sparkos, as it seemed to play faster. Found some I would definitely like to try. Thank you for a great effort.
Thank you very much for repeating my experience with parallelization 😊 You made the great video! 💛🩵
I'm so glad! Thank you :)
Try 6 hours and let us know before I fried 700.00 dac
How to parallel solder them? Any link will be highly appreciated.
WOW - was NOT expecting the YT compression to make that big of a difference, but boy, was I wrong. I have listened to so many clips comparing speakers or other kit on YT and was impressed that I could hear a difference, so much so, that I thought there might be a slight difference but I was NOT expecting it to be THAT big of an improvement in SQ (sound quality). Just started the two, YT and G Drive after your pause and comment section, and the air in the G Drive (uncompressed) video was shocking compared to the YT video. I will watch both all the way through, but just had to stop and comment about the difference I'm hearing. THANK YOU!
Compression doesn't degrade de sq
This time I waited for your conclusions in the video.
I am amazed by the Paralell NE5532. The other one that stands above the rest is the LHY Discrete Double Opa.
In the test you did with the new Fosi V3 mono I liked the Muse02 better, while with the ZA3 mono it was Sparkos.
👉A Paralell Muse02 can be amazing. You should try the same with OPA828.
Tak sobie oglądam Pańskie filmy i nawet skusiłem się na tani wzmacniacz klasy D- mega pozytywne zaskoczenie. Wielkie dzięki. Jakość nagrania robi wrażenie . Oczywiście muszę wtrącić swój mega podziw i szacunek za stworzenie tych petardowych zestawów głośnikowych. Słuchałem filmów na słuchawkach i na swoim zestawie Hifi, w każdym przypadku brzmią idealnie. No i ten design. Życzę wielu sukcesow. Podpowie Pan jaki to utwór tak pięknie sobie przygrywa w tym teście ?
Great overview and then the parallel opamps options adds more questions ....like stacking different makers opamps ...for a sonic cocktail
I have never heard of parallelization before so that was news to me. I use Muses 02 in my DAC. I took all the NE5532 op-amps out of my ZA3, so if I ever learn how to solder, I guess I'll have that project waiting for me.
I've heard of paralleling DAC Chips, and as said above transistors for lower noise, Lowers Rbe, but never OP AMPS. Learned something.
It's great that you tested everything so quickly!! (paralleling of opamps)
I understood the topic a little and in general this is not entirely correct electrically, what you said about high temperature is precisely a consequence of this. But it sounds!!
also my audio engineer friend commented
“If he literally just connected the legs of the chips, well, he was lucky. This op-amp survived that.
But don’t rush to accept a simple explanation as a recipe for all occasions. I insist that doing so is not correct. The total current consumption should increase significantly. Connecting the outputs directly is analogous to a short circuit. Most likely, in this design the through current of the output stages of both op-amps has increased significantly. But not to a critical value - operational amplifiers usually have an output current limitation. But increasing the current through the output stage usually has a beneficial effect on quality. In general, there are prerequisites for an increase in quality. But the method is barbaric."
so be careful.
I'm scratching my head about the heat issue. There is only so much juice available in that part of the circuit, so, powering a sandwich of two OP amps, instead of one, should generate less heat, since two devices are using the same available power. Why is it overheating ? We need an electronics guru here
@@jmbuchela5424 i asked gpt4 regarding this and this is what it has to say "Stacking op-amps can lead to poor thermal dissipation, potentially causing overheating and reducing the lifespan of the components"
Missing from your magnificent report is the famous SPARKOS LABS SS2590 PRO.
I think you'd be very pleasantly surprised by the quality of these AOP ! 😉
NE5532 widely used opamp in recording studios, and for good reason.
yes, because in an analog mixer you need a ton of them and they are really cheap. that is the main reason.
if you buy a reel of 2500, it costs 0,155€ per piece
if you buy an OPA134 1,36€, that is almost 9-fold the price.
LT1028: 7,91€ ==> 51 fold the price.
it is not the best, but great value for the money. if you have a 12-channel mixer and need 5 per channel, you need 60 in total.
this is the point where you realize that cost adds up.
How did you parallel the NE5532?? Using dual single to dip8 adapter or patiently soldering with an Iron and lead? I'm tempted to do it since I have the chips ...but I doubt soldering is doable for me...shaking the hell out on the iron...Also, I'd be curious to see the results with some Akliam LC5 (18$)
Great job, thanks! For me the winner is Sparkos, it simply has a little more mature overal presentation.
Missing is the king.... The SS2590 dual pro from Sparkos.... I use those in my Preamp and my Geshelli J2 AKM4499EX DAC. Absolutely sublime.
Youre king.. 😅
I'm looking at getting the Geshelli J2S or J3. There were 3 (or 4) op amps that stood out to me and one in particular. I'm curious to know what your top 3 were, just to see if we like the same sound. If so, I'll definitely look at the SS2590 Dual Pro. Thanks.
How does it compare to others reviewed here?
Excellent work. Thanks for sharing. As for my experience, since I prioritize on vocals and don't have too much money to spare, I had used 2 pieces of Muses 02 op amps and 1 Oracle II, for my tube pre-amp (for Turntable) and use 5 pieces of Oracle II for my Douk Audio T8 Pro 7 band tube equalizer. That's all good enough for me. Cheers
For my taste, the NE5532 (B) was the best.
great sound on the stacked opamps...I also stack opamps on my guitar overdrive pedals. With some pedals it sounds superb
I think I still prefer the OPA828 series, would be interesting to parallel those though - I mean if that paralleled NE5532 from 1977 can sound that good!
I was also surprised by that. more parallel tests and explanation will come soon - hopefully ;)
@@VirtualHiFi I have now had a chance to compare the Burson v7 Vivid to OPA828 - and it can't hold a candle to the OPA 828 for the high end that's above 450Hz.
The speed and pin sharp detail and clarity of the 828 is on a completely different level because of its ultra-fast slew rate of 150v/uS.
But that's playing fast, complex, recent and well recorded 24/192 EDM music/ vocals.
If you were playing something slow and older the warmth and spatial nature of the Burson V7 might suit better.
For me, I ended up using the V7 in an active cross-over to drive the sub-base below 70Hz and they do a mighty fine job of that.
Thanx for your good and very audiophile videos. On this i have one question. What is meant with parallel ne5532?
I'm sure the op amps do indeed improve the performance. However, I must make a point that the rest of your system (DAC, Speakers, and upsampling to dsd 512 via HQ player) is what truly make these demos sound excellent, even with TH-cam compresion. Those in the market for an inexpensive amp, such as Fosi, will not be pairing the amp with $15k worth of speaker, dac, upscaling music server. I'm far more interested in comparisons of Solid state amps and dacs in the $2-5k range. I appreciate your excellent hard work.
Hello,
Sound great. Hoc can i paralell the NE Chip?
Robert
Usually on the comparisons I can't tell a diffrence, but on J holy smokes it sounded the best all around
Listening to the TH-cam video, my favorite was the Oracle 02 followed very closely by the Burson v7 Vivid. On some of the tracks I preferred the Oracle and on others I preferred the Burson.
The LHY is third for me only because it sounded a little too dark. I'm listening through a SET tube headphone amp, so that may account for the sound with the LHY being too dark for me on my system.
*******After Downloading the Uncompressed File***********
With the uncompressed audio on the downloaded file, all of the tracks sound better.
My top 3 choices are the same as when I listened on TH-cam, except the order is reversed so that the LHY Discrete Double is my top pick, followed by the Burson v7 Vivid, which is followed by the Oracle 02.
With the uncompressed audio the LHY has a little darker background than the other two, but the tonality of the music is not too dark as it was with the TH-cam video.
Another Kinki Studio Ex-M1 Int.Amp which has 4 single op-amps and 1 dual op-amp. I have been rolling Sparko's, Staccatto and recently Burson's new V7's / Vivids and Classics. Preferred line up is Burson V7 Vivid Dual with Burson V7 Classic singles x2 and 2 Staccatto singles.
Which of these op amps can be used inside the Fosi V3 mono without removing the case during operation? Many thanks, Luca
Great video and I agree about the parallel NE3352, it sounded great, that punchy deep bass and crystal clear vocals, I just loved it. I can solder but I don't really want to for many reasons, including heat as you mentioned, so are there any off the shelf single to dual op-amp pcbs that can accomplish the parallelisation without having to solder? I see some stuff on ebay but I don't know if it is correct. Any further info will be appreciated, thanks for the video.
Think I might parallel some BB OPA2134'S
Paralleling 2 OpAmps reduces the noise (i think by the squareroot of 2, but i am not sure) and increases the output current the OpAmp can deliver to the load. So it is easyer to drive low impedance loads, but i don't think that this is significant for any better sound in this case, since the TPA3255 inputs has an input impedance of about 20k (according to the datasheet). But i won't do this with the discrete OpAmps, unless you really know what you are doing. But hey, if it helps 🙂
Well each one of us has his own taste and for me the Staccato is the one closer to truth and the only one without listening fatigue.
I don't like operational amplification, opamps.. I am a SET guy but I must say that I could live happily with the Staccato. The others are trash for my ears and my brain.
Regards
Excellent test. I have done some basic comparisons using the belly hatch of a Aune X8 DAC. And more serious testing of V6 Vivid versus Sparkos 3602 and 2590 in a Burson Conductor 3XP.
Since you are using flying leads and have to leave the case open anyway, You should try the Sparkos Pro 2590. I believe you would find them to be the best. But they are very large to try to fit 4 of them inside a DAC for instance. I have compared them to OP1656, Burson V6 Vivid and Sparkos 3602 and the 2590 is in a league of its own. Especially if you solder on a pair of extra 100 uf caps onto the board in addition to the chip caps that are already included and add a simple ground bus wire between them which dual op amps do not have a pin to supply ground to the chip. The power supply on the board is undoubtedly well bypassed to ground on any high quality component, but especially when using the addition of flying leads taking the op amps away from the board, bypassing the Sparkos Pros right on their board makes a still further improvement.
Even with the TH-cam compression I could still hear many differences and do agree that the LHY was the best. The Burson V7 Vivid seems a good improvement over the previous V6 so I ordered my new (yet to arrive) Soloist 3X GT amp with them and the SP2 regulators as an upgrade and was hoping they would be good enough to avoid the urge to fit a set of (6!) Sparkos Pros but we shall see. It would be expensive but maybe I could get something back from selling the V7s
I didn't like the Stacato or the Oracle.
The double 5532 was better than using just one alone and makes me wonder what a double or triple OP1656 might sound like.
I have single to dual adapters I've tried. Tone is very subjective and largely depends on synergy with the rest of your system. But in terms of soundstage height, depth, width, and the layering clarity of spacial cues, dual OPA1656s sound 80% as good as the Sparkos. NE5532s probably closer to 60%. I need to try the Muse02s. Also have Oracles on the way. I've not heard the Bursons or LHY. Very interested to try the Sparkos Pros.
Where I can buy the PARALLEL NE5532 ???
you buy two of them and solder them in parallel.
Merci! Great work!
Thank you too! 😀😀😀
What about NE5532 and Muses02 soldered in parallel, are they compatible? CanEver Audio make parallel solid state and tube circuit in their top model DAC with great result
Kinki EX-M1+ with Sparkos very good
separation rich Open deep soundstage musical
I … clean, details, clarity with wide sound stage but bass is normal. D is right bass than I but somehow I felt for I than D … but F is kind of bad ass for bass !! 😀 I rate no 1 is for I, 2 is for D and 3 for F .. Sorry I can’t listen til end but Thanks you for your video. Much appreciated
i thought the first 6 were pretty close through yt on my set up but then each one after was a tad better than the one before and j being the best but wow if those oracles are only $10 that might be the way to go if you need several. thanks for doing this test you are awsome and your sound clips are the best
Did the Burson v7 fit in the Fosi chassis? I'm looking at the v7 Classic, they seem very interesting but can't find any info wheter they would fit in
Just wondering whether you think Op Amps make any different to sub-woofer output? Do different Op Amps perform better? I watched one of your previous videos and removed the XLR and sub-woofer op amps from my ZA3 and definitely sounds better. But wondering whether I would have a better sub-woofer experience if I used better Op Amps. Thanks,.
I have the Burson V7 Pros upgraded from their V6s. I experimented with the Classics and Vivids.
For my DACs, I experimented with all four Vivids, all four Classics and two Vivids (LP) and Classics (I/V) and vice-versa.
For me, I ultimately settled on the Classics (warmer) in the LP stage (filter stage) and the Vivids (brighter) in the I/V stage (driving stage).
It's a great combo, and it would be neat to see a video by someone experimenting on mixing amps like this instead of just here are the opamps. Enjoy.
This could be a neat video for you. Mixing Sparkos with Muses or LHY with Burson, etc.
Coincidentally I tried playing between the vivid and classics for my soloist 3xp and found as well V6 classics for the input stage and vivid for volume gain works best.
@beherit98 I see. It's cool to see that I'm not the only one to have that opinion.
I initially had a Sound Blaster AE-9 for my custom-built PC, and I was curious about the op-amps.
I did some research and found that they can change the sound signature, and that's when I ran across the Burson V6s.
I decided to purchase a set of each for Vivids and Classics. I found all Vivids to be a bit overwhelming, all Classics a bit too rich. Classics in the I/V and Vivids in the LP lacked a bit of punch. When I reversed this, I felt it was perfect (for me, anyway). Later, I upgraded to the V7 pros, and it sounded even better.
I was initially running with a pair of Audio Technica ad700x. I upgraded to a Sennheiser HD 6600S2, and that was even better.
I have a 5.1 surround sound system in my room (Onkyo TX-NR6050 with Paradigm Cinema CT70 satellite speakers), so all I used the AE-9 for was headphones.
Unfortunately, the ACM unit bit the dust a couple of months later.
I decided to try their dacs. New to this, I purchased a demo unit (more than half off) of the Composer, believing it to have a headphone jack. I was wrong. I even purchased a set of V7s Classics. When I realized my mistake, I gifted it to my dad for his birthday/ Father's Day gift as both were around the corner. He, too, agreed on the orientation of the op-amps.
I ultimately settled on the Playmate 2. I swapped out the op-amps from my sound card to my new dac, and I must say, it put the AE-9 to shame. I'm glad I switched.
Don't get me wrong. The AE-9 is fantastic for a sound card, but I certainly didn't realize how much of an upgrade I was getting.
This video was invaluable because I'm considering a Geshelli DAC and one of their options is the Burson V7 Vivid. Along with Parallel 5532 (which I've never heard of), the only other op-amp I gave a 10 on listening test was the Burson. I had a feeling that would be a sleeper...
What was really interesting is I gave the parallel 5532 a 10 but the single one a 7. Is that modified parallel one available to purchase
I wonder what was your idea to record from an amplifier and loudspeakers rather than to plug to an AUX output directly in?
E, B - premier league (and you've made something special to 5532 or made a mistake; most likely you've messed up B and I)
F - special guest
G, D, J - 1st division
I, H, A, C - hobbyists
PS The conclusions were made before I read the results, and I'm sure about B and I
Which op amp is more dynamic and produces more deep bass and more treble extension?
Can you parallel two different op amps together to mack a different sound like Muses 02 and NE5532? I can't wait to see the video when you parallel two Muses 02.
Can 1 Use a Mono to Dual OP Amp Adapter with 2 NE5532, instead of soldering them together?
Cool test, thanks. Do you think there's room to fit a small aluminum dip 6-8 heatsink on the Parallel N5532 op amps with the V3 Mono enclosure. If so, max height for aluminum heatsink? I guess you could try to get really crafty and fit a solid aluminum piece that would fit between the opamp and case, try to transfer heat directly to enclosure. tricky tho.
Hello, first of all, there is no one who makes a wide variety of detailed comparisons in opamps, it was a very nice comparison video.
But it would be great if you write the opamp names like A,BC,D... It would be great if you at Least specify in the video description which opamp is playing while playing, thank you.
I was thinking the same.
The goal is to identify the opamps you prefer objectively, without the bias induced by knowing wich opamp you are listening.
@@tofffsymagic1099 Yes, I partially agree, but it would be great if it was stated in the descriptions which opamp plays in the A,BC,D... options, because not everyone has the chance to buy expensive opamps and it is impossible for them to do this. It is also impossible for these opamps to recognize their sound, I look at the issue from this perspective. Of course, I respect the effort made, thank you very much.
@@SERKAN_HOT34 information is at the end of the video. Screencap or write it down. Problem solved.
@@KeithHeinrich i'm so sorry, I didn't watch the video until the very end, I was dreaming that opamap would write names while I was playing opamps, so I didn't watch it until the end of the video, obviously.
This was a very helpful comparison. LHY or Staccatoo 🤔
LHY. Staccato are too mellow for my taste now. The LHY has body richness and punch 👊
Both muses rock!
Even better if you get the two ic opamps stick a piece of copper tape on top of both oamps making sure they're not going to touch any of the pins except the ground pin and solder it to the ground pin. and you can leave a gap between both of them it shouldn't be a problem still enough room with the pins just about also putting a small polystyrene cap across VCC plus a minus of 0.1uF makes a big difference reduces inductance
Thanks
8920 is nice but a bit lean an bass.
I find LM4562 to be ideal.
Discrete op amps are way overrated.
Depois de ouvir todos e saber a identificação de cada um, peça para alguém tocar aleatoriamente as faixas, um novo teste cego, se você acertar mais do que 10% pague um excelente jantar para você mesmo. Acho que você vai ficar sem comer. As diferenças são muito pontuais. A depender da track um ou outro se destaca um pouquinho mais.
Proposal for FOSI:
The Fosi V3 MkII should be designed with a higher cover to allow OPA replacement in them. If they do this I'll buy 2 pcs. 😃
I'll send that feedback to fosi and I totally agree 👍
Thank you for this excellent comparative, i prefered the A with the Burson's wich are more bassy, what a surprise! Amazing! The first 20 seconds of listening, I asked myself WHAT IS THIS? Even before to listen the others. I've watched and re-watched your previous tests and samples dozens en dozens of times.
Does somebody know if it is possible to buy a dip8 opamps paralleling adapter?
I'm so curious how opamps paralleling could sound on my Aiyimas A07 Max, now i hesitate to buy some Bursons or wait with my Akliams LC5 until you publish more paralleling experiments
Hello, last night I soldered the NE5532 opamps in parallel and installed AIYIMA A07 MAX for testing. I get very high quality sound in monoblock mode, but to charge the 48v 5a adapters of Fosi Audio Z3, but AIYIMA A07 MAX gets very hot because it is connected to the 48v 5a adapter.
Frankly, I don't care about overheating, I'm testing opamps🙃
What I'm very curious about is, does it work to connect parallel to single-channel and 2-channel opamps? and if it happens, I have MUSES01 MUSE02, MUSES03, OPA2134, LM4562, LME49720, OPA1612, OPA627, OPA828, LT1028 opamps.
Thanks a lot for your work! Sad that there isn't Burson v7 Classic, because I try to choose which ones to order for my Playmate 2 and Arya Stealth. But it's not possible to include everything.
Did you try to parallel muses02 yet? How do you solder these without melting them?
Paralleling devices is not a new concept but in this case some precautions should be taken.
The LT1028 datasheet should have something similar.
The example with the TDA1543 is not an apples to apples comparison.
The TDA has a current output and when paralleled the currents sum up.
In the case of an op-amp the output is voltage. In a perfect world the output would be zero if the input was zero but in real life the output has a DC offset that varies between units.
Connecting them directly will cause due to the voltage difference even if it is just a couple of mV a high current flowing from one output to the other.
In most cases this can be mitigated using balast resistors.
What about OPA627 ?
My 100% honest blind impression was that A (parallel 5532) was great-sounding, then B (NE5532) and C(LT1028) were poor sounding (low resolution, veiled), then all the rest were great-sounding again depending on one's tastes. I was shocked to find out A was parallel 5532, and since I have a ton of 5532 around, I will solder them together instead!!
I had A down as the standard NE5532 Op Amp in all but track 2. Think I preferred B single to A parallel. My favorites however were D F and G so smoother sounding amps, not a surprise as I prefer analogue.
Analogue or discrete?
As in vinyl.
Good video thanks
For V3 Monos, if you had to pick between Muses 02 and Oracle 02 (not concerned about price) which would you use.
I'll check that for sure later on but price wise the oracles are awesome and since 4 are needed Id think about them. but that is a great video topic best opamps for the V3 monos. I'll do that for sure ;)
Great information, thank you. I'm new to this so any help is welcome.
46:34 39:30
26:15 19:14
LHY Doule Discreet OPA sounds delicate and spaciuos.
But Analog Devices LT1028 sounds the best in terms of PRAT for me.
17:04
1st place G/E
2nd C
3rd B
other op amps sounding like working in bad wiring circuit
Hi whats the name of the artist and song track 1?
Can you do a tutorial about the stacked NE5532 ? Do you also know if this can damage the amplifier ?
Hello, I'll update it in about 2 weeks.
You can do it yourself by soldering 2 on top of each other. But I developed a converter so that you can use basically any opamps and parallel them. Also I created a Supersonic opamp that use 4 dual ne5532 in parallel and I'm testing them at the moment. They all will be available in about 2 weeks since I already have first batch ready.
@@VirtualHiFi Thank you so much for your fast answer. You are the best !!!!! Continue your nice work. Another question, I have two ZA3 at the moment it is worth it to change them for the V3 monos ?
A,C,E,F,H,J C or F may be my favorite (after listening to the first song only)
Thanks for sharing ;)
Same for me
second song C,D,E,F,H,I,J (a was too congested b meh) F and C H fav's
Song 3 C,D,E,F,H,J C,F,J best. I am am drawn to airiness it seems
song 4 C,D,E,F,H,J
I'm just wondering, are your speakers standard or ultra version?
Standard version ;)
@@VirtualHiFi Interesting, thanks for the reply
Es gibt viele DAC die haben 16 op Amps parallel geschaltet verbaut.Wenn man das noch durch deinen Trick verbessern könnte wäre es noch besser…dann mit 32 op amps.
Dadurch steigt auch die Lautstärke des op amps der sowieso keinen Ausgangsübertrager benötigt. (bei Verwendung von 16 parallel geschalteten op amps )
Can you swap op amps on the Harmony Laiv?
p.s. I am not affiliated just a happy customers of theirs (please read the reviews)
muses 02 totali changed my aiyima 07 max how is this possible i have mutch more power full and expensive amps and i dont like them better this is cracy wounder how your loudspaker sound .wounder if i should diy some
li
What HQ player are you using for DSD UPSAMPLING.
signalyst.com/consumer/ the trail resets after 30 minutes and to get a bit of fan experimenting with filters good PC/MAC is needed ;)
LM4562 works well in my Aiyima A07 Max.
Merci, super
Thank you
Anybody else here get a Fosi v3 monoblock amp and received 2 Muses02 chips? I bought 2 amps so they sent 2 chips, does anyone know if the two Muses02 chips are both supposed to be installed into one amp? Or is one chip for each amp? The reason I'm asking is because when you open the amp, there's 2 chips that look like they can be replaced by the Muses02. I know this is probably stupid, but this is my first time using an opamp
You got free opamps due to success of Kickstarter campaign.
I'd put them one each in the first slot from the front of the devices. watch out for bendy legs and alignment. the opamps Has little circle dot in one of the corners and that mean it's leg nr. 1 so you have to alight the muses in the same way.
@@VirtualHiFi Ok sounds good! I reached out to Fosi yesterday and they sent me a response with a picture saying "The op amp in position 1 serves to convert the unbalanced signal from RCA into a balanced signal. The op amps in positions 2 and 3 are responsible for adjusting the tone. If you're looking to change only one op amp, it's recommended to replace the one in position 2. However, if you replace both op amps, the effect will be more noticeable. Positions 2,3 can be replaced with different chips. You can personally experience changing different op amps and op amps in different positions to feel the changes in the sound." In the picture they sent, Position #2 is the middle chip that's next to the bro 2200uf 63v capacitor.
thank you this video! great tip parallel5532. Has anyone tested the parallel ne5532 for a longer period of time? i don't want to kill my v3..
@@piksinjo69 thank you! 🙂
🙏
Please try akliam lc 5
Which op amp is more dynamic and produces more deep bass and more treble extension?
From the audio test, sparkos sounded best
What is the name of the first track?
The 1st track is 'Love you for it all '
Daniel Gunnarsson
I tried a lot of opamps and my favorite is a hdam clone and burr browns, no one take a look of the bandwidth of transitor speed and the higher the more natural they sound, burson and soarkos are pure snake oil for me
G the best
Sparkos are the way to go!!!
Welllll... After putting opamps through the amp and speakers, it's damned hard to really see a difference, if the opamps are anything like " decent"... No measurements, so we must trust this long chain of devices with much worse performance than 99% of opamps... Speakers and ears...
Would be cool to try to set these up using true blind ABX testing, maybe with more amps and something like a Van Alstine ABX Comparator. Get a few people together, make a TH-cam video showing the process, results... Trying to listen through TH-cam on headphones just doesn't convince me, didn't even bother trying.
A D I
Sorry but if anything, the differences are very subtle.
Listening thru headphones...
I'll have to listen to your google file'd version... I believe you that you can hear a difference in 'real life' in front of your speakers, but not really over YT.
I like the idea of soldering two cheap op amps... as an experiment... But how did your now $4.00 op amps compare to the more expensive ones?
D > I > A
It's very good test. Thank You!
My list:
E=I>J=D>F=G=H=A>other