tc electronic BH250 Bass Amplifier, 2 units, Junk

This is a junk item. Please use it as a base for repairs or for parts.
There are two of the same unit. The power turns on. The cause is unknown as it has not been sent for manufacturer repair, but there is no sound.
Input and effector functions work.
I have purchased new equipment, so I would like to sell it to someone who can make good use of it.