Works great and gives more power than the standard power supply.

This power supply is an amazing pairing with the bt20a pro. Peak wattage of 240 a channel in a perfect world. Runs my hard to drive speakers at amazing volumes.

Brick is the size of an old school laptop charger, so make sure you can accommodate.

I had planned from the beginning to use the V3 Monos with their own Fosi Audio 48V 10A Power Supply Adapter each. In the meantime I used only one unit to feed the two monos via a splitter cable and a noise filter. I was of course very familiar with the sound after several months. I did not expect to hear a huge change in sound with each unit powered by its own 48V 10A Power Supply Adapter. I was wrong. I was actually shocked by hearing an enormous slam and increased dynamics with everything played, including greater detail retrieval. I then added 4 Sparkos SS3602 Dual Discrete Op Amps but found the improvement in the sound not as significant as using two seperate power supplies. Do I believe investing in a second power supply is worth it? You bet.

Excellent

Hello All, Just wanted to let everyone know I purchased a second 48v 10A power supply, even though Fosi has said running separate power supply for the V3 monos does not make any difference. Sorry I don’t agree with this statement. With second power supply the BASS control has improved significantly.

Really enjoying the V3 amp with the 48v power supply, drives my Vienna Acoutics towers with ease, barely gets lukewarm.

Bought them as recommended upgrade to the 48V 5A version for my ZA3 monobloc. To my ears, they open up the sound on my KEF LS50!

I have five Fosi amps and they are great.

The mono blocks are superb.

Upgraded from 32 to 48volt 10amp to increase the power of the amplifier. Works well.

Seems to be great quality build, and pretty much the only power supply that will work for it. Sadly, haven’t been able to use it. I updated my receiver to a newer one that doesn’t have pre-out for front towers, saving it for when I get another set of speakers for garage😂

I bought the Fosi Audio BT30D Pro 2.1 Channel Bluetooth Amp with the 32v5a power supply, which was a decent buy, but the 48v10a power supply boasted the output that really rocks my Micca MB42X G2 bookshelves and Rockville 12" powered Sub, good upgrade.

Fosi Audio 48V 5A & 10A Power Supply Unit

quick and fast

Works.

I bought my ZA 3's with the 48v 5A power supply and after doing many upgrades to my system (DAC's, all the OP amps I2S interconnects ect.) I was curious if swiching the power supplies would make a difference. I try to have no expectations so that I perceive actual results and to make sure that my mind isn't playing tricks on me and causing me to spend unnecessarily. I tried to do research is switching from the 48v 5a to the 48v 10a power supply would make much of a difference and I wasn't able to find too much information. In the reviews here it was saying that it improved the bass and dynamics of the music and it seems unlikely that it would but I was shocked to find that it did for me too and I A/B tested the power supplies on songs that I was extremely familiar with and my test concluded that the performance was much better regarding the clarity and micro details. I acutally wanted to send them back to get my $200+ for the 2 power supplies because I didn't think that they would actually make a difference but they did and I think they are a nice improvement to my s;ystem so I will be keeping them! 10/10 would reccomend!

I think it's the upgrade to 48V 10A, especially if you are running for fronts/stereo for that power

Excelent product

I didn't receive yet what i ordered.

Fosi Audio 48V 5A 10A Power Supply Adapter for TB10D, BT20A PRO,V3,ZA3,V3 Mono

These power supplies produce a noticeable noisy transformer hum.

Upgraded the power supply on both my ZA3 mono blocks from 32v to 48v 10amp. More volts = more power as well as clearer sound. Nice upgrade. Next up is upgrading the op amps.

It works perfectly as I expected. Many thanks.

I received a pair of FOSI v3 monoblock amps about a month ago with 48v-5a power supplies. They were perfectly good, but for giggles I decided to try a pair of 48v-10a supplies from FOSI to see if they would provide an audible improvement. In short, they did in two ways. The most obvious was in the bass where the output from my Zu DWX bookshelf speakers became deeper, more full-bodied, and tighter. The other improvement was in micro and macro dynamics. A pair of these power supplies are not cheap (especially relative to the price of stock v3 monoblocks), but I believe the improvement in sound quality is worth it. Recommended.

Superb Performance. Realy Satisfied.

I used this as a replacement to my Logitech pro wheel Base which came with a 48v 6.25A adapter that was misplaced. This 48v 10A works flawless

I tried to connect the MOST POWERFUL 10 AMPERE traformator for each mono WITH A TOTAL OF 20 Amps and the sound is excellent ... powerful/fast/BRILLANT & DETAILED..FANTASTIC !

I bought the 48v 10amp power supply for my TB10D. The 10amp was $50 more than the 5amp. I didn’t notice a considerable change so it may be a good product but it doesn’t do anything for me over the 32v. I would return it but I’ll have to checkout the return policy.

It' s a good device.If you wanna play loud music it has enough power to feed power consuming speakers.