Hi everyone

I am in need of a circuit diagram for a Black-Box-AV power amplifier, Model number A400S.

The amplifier in question is a 200W per channel power amp with both 4 ohm and 100v line outputs.

I have contacted the manufactures and they said that they stopped making them years ago and do not have anything they can send me now. If anyone has a circuit diagram you could send me it would be very much appreciated. If not but can give me information where I may get one from please let me know.

Thank you

David