Hartke VX3500 Bass Combo 3500 amplifier section with 350 watts delivered to its internal 4 ohm speaker system Amp section features tube and solid state preamps, bass, treble and contour controls, 10-band graphic EQ and variable compression Cabinet features 4 x 10" traditional paper cone drivers and a high frequency compression driver Solid braced cabinet construction, recessed side handles, and heavy duty casters