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This has been the most diffacult A-B to date. The differences are super subtle. It is essential the same amp surrounded by slightly different parts so implamentation is what is on trial. It is more like listening to the same amp with different EQ settings and deiding what EQ settings you like. I think I like the sound of B a little bit better. It is a little warmer and the mid bass and vocals seem to have a little bit more life like sounds. I think A is cleaner and more clear and a tad brighters but the mids lack warmth again subtle but very real! If one was not hearing them A-B in this sort of setting it would be impossible to tell them apart. Depending on speakers used and any EQ it would be impossible to tell them apart.
@@VirtualHiFiczy testowałeś Fosi V3 z dwoma oddzielnymi zasilaczami 10A? Będzie jakiś filmik porównawczy? Po Twoich filmikach zamówiłem z Twojego linku cały zestaw w preorder i zamówiłem dwa oddzielne 10A żeby lepiej wysterować Jaspery 18.
Thanks for the demo. Blind tested with AirPod Pro all the way, no difference, can’t tell when the amps are switched. Will be interesting to hear your recording compared with original digital file.
@VirtualHiFi. To you in the room quite possibly, sadly despite your best efforts I still cannot hear any difference this was the same as the opp amp swap vid as well. Great clarity in the reproduction but cannot tell one from the other.
To me, i prefferred the wider and more open soundstage on the Fosi, but the Ayima sounded more "real" especially on woodwind instruments. Both very nice sounding, but looking forward to the upcoming video with opamp mods. Are you going to a/b the same amps both with upgraded opamps, or just the Fosi?
Nice comparison! Since at least some people showed up on ASR and on YT with with confirmed DOA or dead after few hours Fosi V3 Monos, some uncertainty remains about that design.
@@VirtualHiFi bro check 3e design tpa3255, alot of ppl said its better than fosi , ayima and the others, i think audiophonics still sell the board and finished amp too
If I don’t see at the video, only hear, I don’t feel any differences… Thank u for this comparison, great work. But I think, this choice isn’t so important for sound, only functions and outside look are important.
Great vid! I have a question for you or anyone else, if you don’t mind… I have two of the V3s driving my speakers and they sound great. I want to get another one to drive my passive subwoofer but after tons of research, I can’t find how to wire it in my scenario. Hope I’m not hijacking the comments, but I’m assuming there’s a lot of knowledge here so I’ll give it a shot… Schitt modi DAC into Schitt magni preamp into a high filter capacitor arrangement terminating in one filtered channel and one non filtered channel. Obviously the separate L and R filtered channel RCAs are feeding my 2 V3s while the other unfiltered channel RCAs are for my passive subwoofer. Question is - how do I wire the L and R RCA outputs to the single RCA input on the V3?
When I sée this video and hear amp A and B, I was sure that Aiyima was A and I was diapoint cause I bought Fosi V3 mono... But when I Saw that Fosi was A, I 'm happy !!!
Have you consider of testing some cheap chinese tpa3255 boards? It will be interesting how they compare to more branded amplifiers like fosi and aiyima
Both similar for bass but different for treble and transient. B has a little more extended treble and faster transient. A has a bit more mid range density. Prefer A for my taste. Guessing it’s Fosi 😊
To be honest, I think your previous sound samples with pre-PFFB amps like Fosi V3/Aiyima A07/Fosi ZA3 sounded more naturally alive and less boring than Aiyima A70 mono's and Fosi V3 mono's. For your next video, please include the old ones vs new ones, perhaps with op-amp upgrades..
They are very good. Dynamic yet organic, however on the detailed and analytical side, but for the money if they match your system you'll be very happy ;)
@@VirtualHiFi yeah that’s the thing- I tend to prefer warm & rich… that’s why I went Muses02- I just thought these would have an opener sound stage than the ZA3 with sparkos… Idunno… Are your Qualio more analytical or warm/rich?
And is it possible from devices from companies such as Topping, Fosi or Aiyima to assemble a sound management system that can handle sound sources such as computer, TV and streamer without rewiring between devices? I'm considering a Yamaha RX-V4A home theater receiver but maybe there is a better solution :)?
I did not listen to all the fragments because my cat's hogging my seat. But I did hear that B is the Aiyima A70 mono's. I also have a pair playing with Sparkos opamps. A sounded thin. B sounded like a big serious amp (that's back in the box for now). A doesn't synergize as well with my speakers. I played LP's over a Chinese EAR834 clone (modified with PiO caps and Philips ECC82) that has an Alps volume pot, straight into the A70 mono's. That was truly magical! Also, they match well with the black Laiv Harmony dac!
I believe it's either or. You can power speaker with it and have a signal going to an active subwoofer. But it you want to power 2 speakers and 1 passive subwoofer you would need 3 amps.
Thanks for the comment. I believe class D will go for mainstream amps and will eradicate all cheap and middle market AB amps. AB and A class amps will remain only at High End market.
Disagree, I would describe amp A as very neutral, very transparent, very high fidelity and sound much more expensive (despite of the look). It's somewhat both very analytical, very details attack (especially bass), very expressive but somehow in an elegant and mellow way of balance. As I'm more familiar with orchestra and metal it's very obvious when the low bass and electric guitar mid/high frequency playing on each other. Where as the amp B is very artificial, though in your room of acoustic, speaker and etc combo it didn't sound as really cheap in the 1st place (pop song and less demanding genre), but soon it reveal itself when more genre played. It's very jazz in term of frequency response, had much more aritificially crossfeed compared to A and very skewed and mellow in term of sound. In the result of that, it's somewhat muddy and dull, had way less details in bass and high, and any genre of songs that had something more than mid frequency it is very artificial. Also the slight overwhelmingly bright and forward sound of amp A, it might have something to do with your acoustice treatment and speaker placement, in some genre it's slight toward that feels (as mid forward and overly punchy), but after listen to what frequency specifically producing that feels i think it's your acoustic treatment and speaker placing. Should consider toe in more, listening in nearer distance or adding some acoustice treatment cause I think it's the echo.
Thanks for your feedback. Yes the Aiyima is way calmer and not offensive at all. While I like liveliness very much, I know many audiophiles are looking for mellowness and can sacrifice really a lot for it ;)
@@VirtualHiFi Actually Hifi stand for high fidelity. The Aiyima are not very good in many frequency, I would say it's more masking and artificial, thus should not be consider as hi-fi. IMO it's ok for entertainment purpose usage, but below the entry level of hifi.
Since the Fosi gets a bit too warm, or even hot (I am in the tropics) what are the methods you would suggest for more cooling, fan? holes? more radiator surfaces? please suggest
Since my Battle of Opamps video where the Paralell NE5532 was in my opinion one of the best sounding one , I spent countless hours experimenting with paralleling opamps. I basically purchased all available opamps that can be used for Audio and I soldered countless prototypes mixing 2, 4, and more different opamps in parallel, which increases the output current and reduce noise. So now I believe I found the best sounding combinations of the off the shelf opamps that are connected in parallel with different mix
05:24 - The One - Ritchie Everett (4K) (A) sounds better, more realistic, credible than (B). And it has more impact, bass. Other tracks: I do not like the trebble with (B)
@grzegorz-i have some bids on my current speakers im selling at auction, which means I will finally be able to get some Qualio IQ!! Dang I can’t really listen now cuz im without my headphones … I don’t love a bright sound-but I bought the V3s with muses02 op amps which I think will balance the Fosi… to a sound I prefer… I REALLY wanna hear your own op amps and maybe buy those if I like them better than the muses02… (which i preferred in your comparison video to the sparkos for these particular amps). Op amps for these V3s need to chill out the sound a little bit🤣 Any recommendation for XLR cables? I have lots of RCA, but no XLR… I got the ZD3 DAC.
Congratulations on your decision. Don't hurry that at all and let it just happen. Muses are very nice and I'd love to make some more comparisons of the Opamps soon. When it comes to XLR cables well I will have some VirtualHiFi ones in bout 1-2 months. They are physically ready and parts for first batch are coming :)
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For stunning revolutionary 3-way speakers visit - qualioaudio.com
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ua-cam.com/channels/ZQMcQrIW9fCSCLuRNnD3Ww.htmljoin
This has been the most diffacult A-B to date. The differences are super subtle. It is essential the same amp surrounded by slightly different parts so implamentation is what is on trial. It is more like listening to the same amp with different EQ settings and deiding what EQ settings you like. I think I like the sound of B a little bit better. It is a little warmer and the mid bass and vocals seem to have a little bit more life like sounds. I think A is cleaner and more clear and a tad brighters but the mids lack warmth again subtle but very real! If one was not hearing them A-B in this sort of setting it would be impossible to tell them apart. Depending on speakers used and any EQ it would be impossible to tell them apart.
Exactly what I heard too.
it wasn't subtle, i've heard the difference on my speakers. For some other comparisons on this channel i had to use headphones
I've been watching you for some time but I didn't know you were from Poland :) I'm waiting for opamps from you. Dziękuję za Twoja prace !
Thank you for watching and appreciation ;) Pozdrawiam serdeczenie :)
@@VirtualHiFiczy testowałeś Fosi V3 z dwoma oddzielnymi zasilaczami 10A? Będzie jakiś filmik porównawczy? Po Twoich filmikach zamówiłem z Twojego linku cały zestaw w preorder i zamówiłem dwa oddzielne 10A żeby lepiej wysterować Jaspery 18.
Nice vid, very well done thank you. I am currently testing the V3 Monoblocks and so far the performance to price ratio is off the charts.
Glad to hear that. Yes the TPA3255 chip is great and it can outclass many many times more expensive amplifiers ;)
Thanks for the demo. Blind tested with AirPod Pro all the way, no difference, can’t tell when the amps are switched. Will be interesting to hear your recording compared with original digital file.
Try to listen to the dynamic guitar / drums tracks. With those 2 amps they differ in attack energy the most
@VirtualHiFi. To you in the room quite possibly, sadly despite your best efforts I still cannot hear any difference this was the same as the opp amp swap vid as well. Great clarity in the reproduction but cannot tell one from the other.
To me, i prefferred the wider and more open soundstage on the Fosi, but the Ayima sounded more "real" especially on woodwind instruments. Both very nice sounding, but looking forward to the upcoming video with opamp mods. Are you going to a/b the same amps both with upgraded opamps, or just the Fosi?
Nice comparison! Since at least some people showed up on ASR and on YT with with confirmed DOA or dead after few hours Fosi V3 Monos, some uncertainty remains about that design.
whoa cant wait for the opamps
Coming soon ;)
@@VirtualHiFi bro check 3e design tpa3255, alot of ppl said its better than fosi , ayima and the others, i think audiophonics still sell the board and finished amp too
@@VirtualHiFi bo check out 3e audio tpa3255, ppl says it's better than fosi, ayima etc, I think audiophonics still sell the boards, also finished amp.
I think I am going to try some LM4562na's in my V3 mono's. prices are in my range for a little Xmas gift to myself
A is more cleaner than B .. as a result bit more airy,
open 😂 .. punchy get B while details are still very good in both
If I don’t see at the video, only hear, I don’t feel any differences… Thank u for this comparison, great work. But I think, this choice isn’t so important for sound, only functions and outside look are important.
Thanks for sharing your feedback :)
Great vid! I have a question for you or anyone else, if you don’t mind… I have two of the V3s driving my speakers and they sound great. I want to get another one to drive my passive subwoofer but after tons of research, I can’t find how to wire it in my scenario. Hope I’m not hijacking the comments, but I’m assuming there’s a lot of knowledge here so I’ll give it a shot… Schitt modi DAC into Schitt magni preamp into a high filter capacitor arrangement terminating in one filtered channel and one non filtered channel. Obviously the separate L and R filtered channel RCAs are feeding my 2 V3s while the other unfiltered channel RCAs are for my passive subwoofer. Question is - how do I wire the L and R RCA outputs to the single RCA input on the V3?
When I sée this video and hear amp A and B, I was sure that Aiyima was A and I was diapoint cause I bought Fosi V3 mono... But when I Saw that Fosi was A, I 'm happy !!!
Glad you are happy fella ;)
Have you consider of testing some cheap chinese tpa3255 boards? It will be interesting how they compare to more branded amplifiers like fosi and aiyima
Both similar for bass but different for treble and transient. B has a little more extended treble and faster transient. A has a bit more mid range density. Prefer A for my taste. Guessing it’s Fosi 😊
To be honest, I think your previous sound samples with pre-PFFB amps like Fosi V3/Aiyima A07/Fosi ZA3 sounded more naturally alive and less boring than Aiyima A70 mono's and Fosi V3 mono's. For your next video, please include the old ones vs new ones, perhaps with op-amp upgrades..
Thanks for the comment and feedback. I'll try to do a new mix of tracks for future videos ;)
Ive bought the v3 stereo, so curious about many reviews and good comments lol 😀
Me too and they haven’t arrived yet…
They are very good. Dynamic yet organic, however on the detailed and analytical side, but for the money if they match your system you'll be very happy ;)
@@VirtualHiFi yeah that’s the thing- I tend to prefer warm & rich… that’s why I went Muses02- I just thought these would have an opener sound stage than the ZA3 with sparkos… Idunno…
Are your Qualio more analytical or warm/rich?
Aiyima sounded better except for bass impact. It was more extended in the highs, more laid back and engaging. Less mid range compression.
Thanks for sharing your feedback :)
And is it possible from devices from companies such as Topping, Fosi or Aiyima to assemble a sound management system that can handle sound sources such as computer, TV and streamer without rewiring between devices? I'm considering a Yamaha RX-V4A home theater receiver but maybe there is a better solution :)?
I did not listen to all the fragments because my cat's hogging my seat. But I did hear that B is the Aiyima A70 mono's. I also have a pair playing with Sparkos opamps.
A sounded thin. B sounded like a big serious amp (that's back in the box for now). A doesn't synergize as well with my speakers.
I played LP's over a Chinese EAR834 clone (modified with PiO caps and Philips ECC82) that has an Alps volume pot, straight into the A70 mono's. That was truly magical!
Also, they match well with the black Laiv Harmony dac!
Thanks for sharing. Yes the Aiyima is more analogue for the price of speed and attack. So it's the preference based choice ;)
@@VirtualHiFiis there another description of ‘attack’? I’m not really sure what it means in terms of audio quality.
What about aiyima’s subwoofer output quality ? Can it deliver thumping bass?
but i still want to confirm that the aiyima cannot play subwoofer AND normal speaker at the same time right?
I believe it's either or. You can power speaker with it and have a signal going to an active subwoofer. But it you want to power 2 speakers and 1 passive subwoofer you would need 3 amps.
maybe, the future of great sound is in class d. the only minor downside can be reliability.
Thanks for the comment. I believe class D will go for mainstream amps and will eradicate all cheap and middle market AB amps. AB and A class amps will remain only at High End market.
Disagree, I would describe amp A as very neutral, very transparent, very high fidelity and sound much more expensive (despite of the look). It's somewhat both very analytical, very details attack (especially bass), very expressive but somehow in an elegant and mellow way of balance. As I'm more familiar with orchestra and metal it's very obvious when the low bass and electric guitar mid/high frequency playing on each other.
Where as the amp B is very artificial, though in your room of acoustic, speaker and etc combo it didn't sound as really cheap in the 1st place (pop song and less demanding genre), but soon it reveal itself when more genre played. It's very jazz in term of frequency response, had much more aritificially crossfeed compared to A and very skewed and mellow in term of sound. In the result of that, it's somewhat muddy and dull, had way less details in bass and high, and any genre of songs that had something more than mid frequency it is very artificial.
Also the slight overwhelmingly bright and forward sound of amp A, it might have something to do with your acoustice treatment and speaker placement, in some genre it's slight toward that feels (as mid forward and overly punchy), but after listen to what frequency specifically producing that feels i think it's your acoustic treatment and speaker placing. Should consider toe in more, listening in nearer distance or adding some acoustice treatment cause I think it's the echo.
Thanks for your feedback. Yes the Aiyima is way calmer and not offensive at all. While I like liveliness very much, I know many audiophiles are looking for mellowness and can sacrifice really a lot for it ;)
@@VirtualHiFi Actually Hifi stand for high fidelity. The Aiyima are not very good in many frequency, I would say it's more masking and artificial, thus should not be consider as hi-fi.
IMO it's ok for entertainment purpose usage, but below the entry level of hifi.
There is only one opamp inside the Aiyima A70 mono vs 3 inside the Fosi
Since the Fosi gets a bit too warm, or even hot (I am in the tropics) what are the methods you would suggest for more cooling, fan? holes? more radiator surfaces? please suggest
yes you can do the the additional cooling if you wish. Using any additional radiator that you can fix to the Fosi with thermal glue will work great.
Maybe you can put them on top of laptop coolers. You can even find them at thrift stores for $5.
@@VirtualHiFi externally or internally?
what are thos op amps coming?
Since my Battle of Opamps video where the Paralell NE5532 was in my opinion one of the best sounding one , I spent countless hours experimenting with paralleling opamps. I basically purchased all available opamps that can be used for Audio and I soldered countless prototypes mixing 2, 4, and more different opamps in parallel, which increases the output current and reduce noise. So now I believe I found the best sounding combinations of the off the shelf opamps that are connected in parallel with different mix
No difference for my ears... at all. Thanks for comparison :)
Thanks you for your comment :)
05:24 - The One - Ritchie Everett (4K)
(A) sounds better, more realistic, credible than (B). And it has more impact, bass.
Other tracks: I do not like the trebble with (B)
Thanks for sharing :)
Neither. Lol.
Thanks for sharing :)
Both crap
@grzegorz-i have some bids on my current speakers im selling at auction, which means I will finally be able to get some Qualio IQ!!
Dang I can’t really listen now cuz im without my headphones … I don’t love a bright sound-but I bought the V3s with muses02 op amps which I think will balance the Fosi… to a sound I prefer…
I REALLY wanna hear your own op amps and maybe buy those if I like them better than the muses02… (which i preferred in your comparison video to the sparkos for these particular amps). Op amps for these V3s need to chill out the sound a little bit🤣
Any recommendation for XLR cables? I have lots of RCA, but no XLR… I got the ZD3 DAC.
Congratulations on your decision. Don't hurry that at all and let it just happen. Muses are very nice and I'd love to make some more comparisons of the Opamps soon. When it comes to XLR cables well I will have some VirtualHiFi ones in bout 1-2 months. They are physically ready and parts for first batch are coming :)
@@VirtualHiFi did you do some op-amp rolling on the ZD3 DAC-maybe I get muses02 for the DAC too…
Show the units without your hands jiggling, wiggling them.