Convergent Audio Technology SL1 Pre Amp. I acquired this in a real estate transaction. I was told it was a working unit, but I have no way of testing it. Please bid accordingly. One of the toggle switches broke off the mute control, and it is taped to the side of the unit I will consider all offers It has the power supply with it. There are a few blemishes, and what appears to be a broken screw on the top plate. This was apparently paired with a JL2 amplifier, which I also have listed Local pick up is available but I can also ship it Again, I cannot confirm the functionality of this, so please bid accordingly