Thank you for viewing. This is a bass preamp, sold as the unit only. I received it from the previous owner and have stored it in a dark place for about a year. I have confirmed that it powers on, but I have not tested it by connecting it to an amplifier, so I am selling it as a junk item. Due to it being a junk item, please understand that no claims or returns are accepted. It will be packed with cushioning material and then shipped in a cardboard box. Multi-function bass effector, equipped with distortion and equalizer. - Brand: MXR - Model Name: bass d.i. + - Functions: Distortion, Clean, Gate, Equalizer - Connection Terminals: XLR output, Direct output - Controls: BASS, MID, TREBLE, COLOR, DISTORTION, CLEAN TIME - Power: Battery or AC adapter - Other: Phantom power, Ground lift Thank you for viewing.