Whats a hotter power supply?If anyone has a link or model number for the hotter power supply I'd appreciate it.
Higher voltage vs stock. Hard to figure out exactly which one it would be.Whats a hotter power supply?
Just go to the fosi website.Higher voltage vs stock. Hard to figure out exactly which one it would be.
If anyone has a link or model number for the hotter power supply I'd appreciate it.
It will be interesting to see what the V3 measures liked but Fosi have been getting better and better so no doubt its a good Amp, but I do like my BT20A Pro - bluetooth is effectively optional so I don't think affects the sound quality though I run with the RCA inputs from a DAC.I was going to buy the BT20A Pro, but I really wanted something simpler with no Bluetooth at all. So I ended up backing the new Fosi V3 instead.
![]()
Fosi Audio V3 amplifier discussion
Fosi Audio is releasing their new V3 amp. The model name is a bit confusing but oh well. Functionality it is like the Aiyima A07. Amp with RCA in, sub out, volume and power switch. Nothing else to distract you. I am not sure why it is on Kickstarter to launch, but I backed it since I was...www.audiosciencereview.com
Are they comparable? Since Fosi BT20A PRO is $70 and mcintosh MA352 is $7000, they're not even the same thing.I replaced a BT20A with the new BT20A PRO for my ceiling speakers. I have an Apple TV connected via bluetooth to watch movies and listen to music. There are so many upgrades including the wattage that's it's hard to tell exactly what accounts for the big jump in sound quality, but I'm very happy I upgraded! It's not a MA352 (I did compare it haha) but for $70 (thanks for the 30% discount Fosi!) I could not be happier. Now let's see how much I can get for the BT20A...
I wish I could get the 30% discount! You went from a TPA3116 chip to TPA3255 chip.I replaced a BT20A with the new BT20A PRO for my ceiling speakers. I have an Apple TV connected via bluetooth to watch movies and listen to music. There are so many upgrades including the wattage that's it's hard to tell exactly what accounts for the big jump in sound quality, but I'm very happy I upgraded! It's not a MA352 (I did compare it haha) but for $70 (thanks for the 30% discount Fosi!) I could not be happier. Now let's see how much I can get for the BT20A...
Technically speaking, they were comparable. I compared them myselfAre they comparable? Since Fosi BT20A PRO is $70 and mcintosh MA352 is $7000, they're not even the same thing.
Technically speaking, they were comparable. I compared them myselfBut no, different league, especially with my power hungry B&W 702 Signatures. But, not 100 times better!
Is that good or bad? I'm no audio engineer...
[ B&W's sensitivity was a high 90.2dB(B)/2.83V/m, confirming the specified 90dB. The 702 S2's nominal impedance is specified as 8 ohms, with a minimum value of 3.1 ohms. ]
And about 3.4 Ohms at... 700 Hz!!!!!!!
It will certainly present a challenging load down at 80Hz, where you can see a 4.7Ω impedance combined with a –68 degree phase angle (the phase angle is shown by the light blue trace).
Thank you for reminding, It's the power supply that supports 110V -240V.On the US Amazon page, it says 220 V in the specs. Is this a typo? I wouldn't want that in the USA.
https://www.amazon.com/gp/product/B07JVFY27T/ref=ox_sc_act_title_2?smid=ATV3LXZ3ZXOW8&psc=1
When I first got them (used for $5K) I found them even worse than my 683s. I was driving them with a MA252. I then read they need a LOT of power so I upgraded to a MA352 (sold my year old MA252 for $100 less than I paid for new!Worst impedance graph (3.1 and 3.3 Ohms) -> they need a good amplifier with amperes to sound good with discrete transistors, without chipamps (either class D or AB, or at least two by channel). Or a powerful tube amp.
And...
A cheap class D is not a good idea. Or a modern AV.
View attachment 282234
Worst impedance graph (3.1 and 3.3 Ohms) -> they need a good amplifier with amperes to sound good with discrete transistors, without chipamps (either class D or AB, or at least two by channel). Or a powerful tube amp.
And...
A cheap class D is not a good idea. Or a modern AV.
View attachment 282234