Description
Don’t let the size fool you. The Gallien-Krueger MB150S-112 crams serious low-end authority into an all-metal cabinet that tips the scale at just 24 lbs. and slides into an overhead bin. It’s built around a heavy-duty 1×12″ Paragon Cast Frame driver, running at 100W on its own, and it comes loaded with a 4-band active EQ (parametric mid included) so you can actually shape your tone instead of just turning knobs and hoping. A footswitchable stereo chorus adds width when you want it, and a user-activated limiter keeps things clean when you dig in too hard at a loud rehearsal.
Add the 112MBX extension cab and this little combo turns into a legitimate stage rig — 150W total, with the extra cab sharing the exact same sealed aluminum chassis, steel grille, and 100W speaker as the combo itself. At only 12 lbs., it doesn’t undo any of the portability that makes this system worth owning in the first place. Kill the internal speaker, run into a pair of 8-ohm cabs, and you’ve got a setup that scales from bedroom to bar gig without swapping amps.
Around back you’ll find the connections that make this thing genuinely versatile: an effects loop, line out, headphone out, and a pre-EQ XLR output with ground lift for feeding a PA or recording rig directly. Stick it on a stand as a personal monitor, or mic it up front and center — either way, it stays out of your way and does its job.
- 100W main output, 150W with the 112MBX extension cab
- 1×12″ Paragon Cast Frame Driver plus a high-quality horn tweeter
- 4-band active EQ with parametric mid control
- Footswitchable stereo chorus
- Effects loop, line out, headphone out, pre-EQ XLR with ground lift
- User-activated limiter to guard against distortion
- 112MBX: 100W RMS/8-ohm speaker, aluminum enclosure, steel grille, 12 lbs.
- 112MBX warranty: 1 year on speaker, 2 years on electronics








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