Mark Bass Multiamp stereo amp, head for bass guitar, stereo amplifier 2 x 500 watts at 4 ohms or 1000 watts mono at 8 ohms, digital stereo preamp, 3 channels, controls for gain - presence - level - master, 3 band EQ with controls for bass - mid - treble, 12 amp simulations, 8 cabinet simulations, 8 microphone simulations, 300 factory presets, 8 assignable slots per preset, 15 effects, tap tempo function, 3 output modes, chromatic tuner, midi capable slot for SD carts, headphone output, FX loop, lightweight (4.3 kg), rack unit (2U), incl. mounting brackets for rack mounting.