Details：

The latest production HIFI audiophile power IRS20957+IRFB4227 mono digital amplifier board can connect 4 Ohm load. Sound effortless, low-frequency flexible, dynamic class

With UPC1237 protection fuction. independent power supply,

Parameters:

1. Supply voltage: Dual DC power supply ±40V- ±70V ( recommend ±48V)

Protection circuit voltage: AC12-AC15V

2. Maximum output power: 400W / 4Ω

3. Efficiency:> = 90%

4. SNR: 90dB

5. Speaker: 4Ω

Package include:

400W mono class D Power amplifier board x 1


This is mono amp board, to built a stereo amp, you will need 2 of this board!!

Recommend power supply：https://www.ebay.co.uk/itm/272847383409