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More on OpAmps, live review of ZA3 by @VirtualHiFi Sound difference between stock opamps and Sparkos night and day, in my opinion, and that of many others too. Fosi ZA3 + Sparkos Op-amp - The real deal - Don't miss out !!! Interested in Sparkos Opamps - visit www.sparkoslabs.com "Fosi is a...

Good to know. FYI I make my case on the basis that my power amps all have line out - suitable for daisy chaining (bi amping), or subs. :)

Re Opamp Rolling for V3. Reading the collective wisdom of my friendly AI assistant I would deduce that 95% of the impact of rolling am opamp would be tonal at XLR input (see below) and actually not worrying so much about over investing in output opamps :-...

Thanks for the prompt updates. It is appreciated:. 1 Understood. 2 I would even be happy to pay difference for 10A power supplies if it means reduced heat, or have one of each of 5A and 10A. I am looking to bi-amp, and drive some very large 8Ohm speakers, and need all the power I can get-when...

see: https://www.audiosciencereview.com/forum/index.php?threads/bricks-list-36v-48v-power-supplies-for-fosi-aiyima-etc.48373/ - might be out of date but looks a good source.

Crazy was the signup-email voucher-link not actually taking you to Kickstarter. I wonder how many people got stuck there! All a bit of fun.

Luckily, I only need to buy more power supplies to fix, and power cables clearly. Then that negates the whole Kickstarter early-bird discount. But it is ok. I guess the same holds for bi-amping, having two power supplies?

(I know where I am :))

I do find power a dark art. PS audio video, only yesterday in fact, suggests dedicated power per amp to reduce noise amplification in dual-mono configurations. How is this any different to sharing a power strip, or supply socket? That's what baffles me. Always has. BTW I avoid power amps (and...

Dear @Fosi Audio I have pledged, almost sound a religious thing to do. Yesterday was full of excitement. Today however I am now faced with five concerns: 1 Heat - ie total amount of. Videos are now showing amps as running hot. Will total heat output be less than standard A/B amp which runs...

My ignorance, probably, but a small fire gives off less heat than a big fire-yes? Do these amps give off less heat in total than a full sized AB 300W/channel AMP? This is the only reason that I am investing. I get too hot in my Shedquarters (new family name for my man cave - where I work) with...

Hello @Fosi Audio one YouTube reviewer is saying that there is cross-talk from the single power supply, "pop and crackle" noises - demonstrated in the video. Suggests avoiding the single power supply, as it goes against "conventional wisdom". Is this a known issue, and will it be fixed, or will...

Unless I am a whole day out Kickstarter opens 4pm :)

Brilliant. So jumpy-up 8 pin Op Amps for "rolling". Question to @Fosi Audio , will you share specs/tolerances for suitable replacement op amps? Assuming there are alternatives that offer pure sonic differences. And advise which V3 op amps to roll, as I have seen that it does not always make...

Hello, as we wait, patiently, for the 20th and then some; I could not help but do some more research. In doing so I noticed that the Aiyima A07 Max has some good reviews in bridged-mode, and has upgraded cap(s)...

https://www.kickstarter.com/projects/fosiaudio/fosi-audio-v3-mono-power-amplifier - Now at 727 :)

Hello, I too am excited to test these mini amps - to run cool in my shed in summer, is the plan. I too got an email (spam folder - like most peeps) today with two vouchers, very confusing - as neither work (yet). I did notice that PSU on the vouchers, one is 5A the other for a 10A unit, so...