Brandless audio amplifier 9 channel anyone can help?

Hey i got a question I got a audiosystem with 9 channels and a monoblock in there that is about 20 centemeters wide

It has a black aluminium casing but there is no brand on it.

on the back is a silvercolor on button i think it has been used as a amplifier to put speakers on.

The total lenght of this amplifier is 1.5meters by 25 centimeters.

My question is does anyone know what kind of brand this amplifier could be?

Thanks in advance