for another bass preamp. I tired it, it's just not really my thing. It;s in OK shape, some scratches. the input jack can loose once, I put it back together, it works fine. Seems to be full of Mesa tubes, at least the ones I could see. I already have a tech21 RBI, but would love an RPM or something else. Otherwise some other comparable piece of gear. No cash offers please. Wouldn;t be the end of the world if I end up keeping it, I just like my Tech21 better.