Orange Bass Butler , Bi-Amp Preamp Pedal for Electric Bass, 2 channels, Channel 1 (always-on): Bass channel with control for compression, bass, treble and volume, Channel 2 (switchable): Guitar channel with controls for gain, bass, middle, treble and volume, Balanced XLR DI-Out with bass cab / guitar cab simulation for each channel, Mix output without simulation, Input for expression pedal, Ground lift switch, Power supply: 18 V DC adapter, Dimensions (W x H x D): 17.0 x 8.5 x 16.5 cm, Weight: 1.3 kg, Colour: Black, Made in UK