4/3 channel Power Amplifier
Incorporates a 45mm large toroidal transformer, primary capacitor 9900uF and secondary capacitor 6601uF.
Cooling fans built-in to avoid shutdown by hear protection.
The amplifier will automatically turn on when the speaker level input terminal senses the receiver output. Without any additional wiring, you can easily construct a subwoofer system or a complete system with a more powerful external amplifier.