Type...For electric bass Effect type...Preamp The definitive compact, multi-functional outboard preamp. With a 2-channel design, XLR output, and speaker simulator, this is a reliable unit that can handle any situation, whether live or recording. ■ Bass preamp ■ Controls: Volume, Drive, Edge, Middle Frequency, Middle, FX Mix SW, Tube Simulation SW, Enhance Filter SW, Bright SW, Treble, Bass, Gain, Mute SW, A/B Switch, Speaker Simulator SW ■ Input/Output: Input (A/B), Output, XLR Out, Effects Send/Return, Headphones ■ Power: 9V DC adapter (sold separately) It has been used, but works well. Price negotiable.