AIYIMA DC48V 10A GaN Power Supply Adapter for TPA3255 Stereo Class D Amplifier A07 & A07 MAX & A08 PRO & A70

Purchased to upgrade my Fosi 48 volt 5 amp power supply. Based on price and upgraded design this 10amp power supply brings out more power, dynamics, clarity. No noticeable hum or noise! Live in an area with a lot of cell towers and high power line. Absolutely no problems. For me it’s a great buy and does exactly what Fosi said theirs would do! Can not compare the to different power supplies as I didn’t have two Fosi power supplies. Fosi states that it up rated power supplies can increase power safely as the chip can handle 53 volts 12 amperage with and increase in power with increased need for ventilation. Yes, my amps run hotter so placement should be watched.A small inexpensive computer fan has been used on some of the reviewers will good results. I love the Fosi products. If you want to really hear and feel the increased power do the upgrade. You I’ll need two power supplies for the Fosi V3 Monoblock amplifiers.The manufacturer uses the same chip TI 3355 using the same voltage and amperage as well as adapter in their amplifiers.

Needed a 10a 480 for the mini amp im running my sys with.Make sure your surge protector can handle this baby.It's rather big, but doesn't command any heat and the cords are nice and long.Im pretty damn satisfied.

Powers a Fosi 2.1 Bluetooth amp.Clean and quiet, does run pretty warm when pulling a sustained 8 amps.Can't think of any issues that would put me off of purchasing another as needed.

Sadly I failed to read the one star reviews in this case and became yet another person to experience an immediate ground loop issue. This power supply is grounded whereas the original one is not. No loop with the original. Immediate hum with this one.

I bought this for an amplifier which came with a power supply but the maker stated that the amp would not put out its full potential watts unless you bought this larger power supply. I get it but when I use the larger power supply I can't tell any difference at preset volumes. I probably need to use a more scientific approach but I'm not that motivated.

work very well. quality build

Replaced the standard 36v 5A with this power supply. Huge difference in clarity and sound. Go for it, you won’t regret it.Update 12/2024 - connected the A08 Pro with the 48V 10A power supply to a pair of Elac UF5 4-OHM floor speakers which need a lot of power; Sounds so sweet!(Previously tried to connect the Elacs to an HTA-200 tube amp, sounded great but it ran too hot)

On paper, this is an amazing deal. Unfortunately, it makes a buzzing sound at high volumes over my fosi V3, similar to a gnat. It's not super loud, but if you're listening for a black background, you can hear it, and it's a deal breaker. I had the same problem with another 48v10a gan psu, but not with a 48v10a non-gan psu, and not with a 48v5a gan psu. If I stick with the V3, between 48v10a non-gan and 48v5a gan, I'm going with the latter.