Portable, lightweight combo amplifier for electric bass guitar from MB series that offers effortless transport for rehearsals and 350W of power through two custom-designed 10” speakers with 2” edge wound aluminium voice coils (500W with extension), and is suitable for a broad range of venues. Its four band active EQ and contour are based on the legendary 800RB and provide extensive tone shaping capability. This unique design varies the EQ bandwidth to retain a musical response even at extreme settings. Extremely lightweight switch mode power supply and power amp deliver the power into the speaker with very little wasted heat dissipation. The port of the cabinet is tuned for optimum performance while coupled with a specific jute blend of damping material, which provides the right amount of damping at the right frequencies, for optimum response. Each speaker is isolated in its own chamber eliminating tone robbing standing waves and sound leakage through the cabinet walls. The cabinet further features a plywood construction with tough vinyl covering and metal corners to provide lasting protection. The combo provides a balanced DI with pre/post switch, an aux in and a headphone output for silent practice plus a ''chain out'' to drive GK's MBP powered enclosures. Internal circuitry is always on the alert to problems, indicated at the power switch ring. Dimensions: 368.3 x 482.6 x 584.2 mm. Weight: 17.7 kg.