Description
The MicroBass line built GK’s reputation among working bassists and session players who need real tone without a roadie, and the MB 115-II carries that torch forward. At 38 lbs., it’s the kind of amp you toss in the trunk without a second thought, but don’t mistake the light build for a lack of muscle. The single 15″ woofer paired with a horn gives you full-bodied low end and top-end clarity that cuts through a mix, whether you’re slapping funk lines or laying down deep sub tones.
200 watts from GK’s digital power amp section means you’ve got the headroom to stay clean at stage volume, and if you ever need more push, pair it with the 112MBX extension cabinet for a bigger footprint without buying a second head. The four-band active EQ lets you dial in everything from vintage warmth to modern growl, and the contour switch is there when you want an instant scoop for that classic GK snap.
Practical touches make this amp gig-ready right out of the box:
- Tolex exterior covering built to survive load-in and load-out
- XLR direct out for feeding the house PA straight from the amp
- Chain out for linking to an extension cabinet
- Aux input for practicing along with tracks
- Headphone output for silent woodshedding
Dimensions run 14.5″x19″x23″, small enough for tight stages and easy transport, big enough to fill a room. If you want the MicroBass sound in a compact combo you can actually carry yourself, the MB 115-II earns its spot on the truck.








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