STK401 HiFi Power Amplifier Board 2.0 Channel Audio Amplifier Module with Pre-amplifier 200W 70Wx2 Unassembled

STK401 HiFi Power Amplifier Board 2.0 Channel Audio Amplifier Module with Pre-amplifier 200W 70Wx2 Unassembled

Specifications:
PCB Size: 135 x 100mm
Output Power: subwoofer: 200Wx1; left and right channels: 70Wx2
Subwoofer Frequency: 10-80HZ; left and right channel frequency: 20-20KH

Features:
-Adopt 2 brand new original STK401 chips, provide 200Wx1 and 70Wx2 powerful output, far exceeding the 300W digital power amplifier.
-Adopt dual Japanese Omron protection circuit, so that the expensive speaker can work in a safe state, with no impact when turning on and off.
-Use op amp low-pass circuit, and the op amp belt seat can be replaced, low-pass attenuation reaches 24DB, very professional.
-Left and right channels with front stage, high and low bass independent adjustment.
-Wide power supply voltage, AC 15 to AC 33x2 can work normally; the circuit is free of debugging.
-Pre-stage power supply is 13-18Vx2.

Package List:
1 x Amplifier Board

Note: The product needs to be assembled by yourself.