- 150W, head-unit configuration, solid-state chassis, single channel, front gray control panel, single input, seven black knobs (v, t, h/m, h/l, b, output level, limiter level), effects loop, black covering, 10 lbs., disc. 2008.

- 200W, 1-15 in. speaker with a piezo tweeter, 8 ohm impedance, Speakon and 1/4 in. standard speaker jacks, tweeter defeat button, plywood construction, black Tolex covering, gray metal grille, 23.5 in. wide, 19.5 in. tall, 18.5 in. deep, 4...

- 350W @ 8 ohms (500W with an extension speaker cabinet), 2-10 in. Neodymium speakers with a horn, bass combo, solid-state chassis with a digital power amp, two channels (normal, boost), top silver control panel, two inputs (passive, active...

- 200W, 1-12 in. speaker, bass combo, solid-state chassis with a digital power amp, single channel, top silver control panel, two inputs (passive, active), five black knobs (g, t, hi-mid, low-mid, b), contour on/off switch, aux. in jack, he...

- 100W, 1-10 in. speaker, bass combo, solid-state chassis with a digital power amp, single channel, top black control panel, one input, five black knobs (g, t, hi-mid, low-mid, b), contour on/off switch, -10dB on/off switch, aux. in jack, h...

- 800W, lightweight bass head unit, hybrid chassis, preamp: 3 X 12AX7, power: solid-state, two channels, front black control panel, single input, nine black knobs (g1, g2, c, t, h/m, l/m, b, level B, MV), 10 dB pad switch, mute switch, powe...

- 200W, 1-12 in. speaker, straight front, one XLR input, poplar construction , black covering, black grille, 17 in. tall, 15 in. wide, 14.5 in. deep, 30 lbs., mfg. 2012-present.

- similar to the MB150S-III Head, except in combo configuration with 1-12 in. speaker, black covering, black metal grille, 26 lbs., current mfg.