DC48V 10A GaN Power Supply Adapter Amplifier Power Adapter Converter AC110/220V For TPA3255 Stereo Class D Amplifier A07 & A07 MAX & A20 & A80 & A07PRO Integrated Amp

These are great with the Fosi za3 amplifiers. Makes the bass more solid and controlled and the vocals more dynamic. I have 4 of them each running a za3 as a monoblock, quad amping a difficult to drive set of Neat speakers. Really good.

Comes with USA power lead,other than that it's a power supply.

WARNING****Do not use for Fosi audio V3 Mono Blocks****WARNING Hissing on line in! Picking up every single sound from the TV picture changing also. Changed back to old filtered PSU twin and problem solved. Items returned for a refund. This information was not in the reviews when I searched so I'm adding it!

I'm using a fosi audio bt20a pro and decided this would be a decent upgrade for it. Unfortunately it plugging the amp into this power supply caused a high pitch squeeking to be emitted from my unit. Definitely does not occur with the standard included power supply, seems consistant with ground loop interference.

I bought two of these to use with 2 Aiyima A07 Max configured as monoblocks. These worked perfectly with the supplied Aiyma 36V power supplies, but with the 48V GaN supplies emitted a loud, high pitched noise through the speakers. I am returning these to Amazon.

Zeer goede voeding, erg blij mee, zit achter een Douk A5 en het laag is veel stakker.

Buen prodicto

Ich habe das Netzteil als Leistungserweiterung für einem kleinen Verstärker gekauft. Das Netzteil wurde nur leicht warm und war leise. In Verbindung mit einer Enegiekostenzähler-Steckdose kann ich die angegebene Leistung bestätigen

⭐️⭐️⭐️⭐️⭐️ This 48V / 10A GaN power supply is an absolute game changer. I’m using it with a Fosi V3 in my home office, driving B&W DM603 S3 floorstanding speakers, and the difference compared to the stock PSU is not subtle. With this power supply, the amp gains noticeably more headroom, control, and authority, especially in the bass. Bass is tighter and more confident, dynamics improve, and the overall presentation sounds more effortless. The amp feels far less constrained at moderate listening levels, and transients come through cleaner and with better impact. Build quality is excellent — compact, well-finished, and it runs cool thanks to the GaN design. No noise, no coil whine, no instability. It’s been completely reliable in daily use. If you’re running a Fosi (or similar compact Class D amp) and wondering whether the higher-voltage PSU is worth it — it absolutely is. This power supply lets the amplifier perform at its full potential. Highly recommended upgrade.

Ne ho presi due per alimentare due Fosi V3 mono. Compatibilità e funzionamento perfetti. Non sento stravolgimenti, forse ora il suono e leggermente più corposo, comunque questione di sfumature.