I spotted one at GC and it worked okay. It may need a new pre tube, but that's no biggie. It's the black face amp with blue trim, 4 band EQ with freq knobs, limiter, bass, treb, volume and gain, 2 inputs. What are they worth? How reliable are they? Any major issues? Also, I cranked the Gain and it made awful noises (not distorted, more awful). I assume this is a tube issue. It was a Spector Rebop 5, so the output was not too high or low.