Gallien-Krueger MB115-II 1x15" 200-Watt Bass Combo

200W, 1 x 15" Combo Bass Amplifier with Piezo High-frequency Horn, 4-band EQ, Contour Switch, Limiter, and XLR Direct Output
Gallien-Krueger MB115-II 1x15
Gallien-Krueger MB115-II 1x15
Sweetwater Savings: $204.05 MSRP: $673.05
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Gallien-Krueger MB115-II 1x15" 200-Watt Bass Combo
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The Ultimate Bass Combo for Players on the Go!

The Gallien-Krueger MB115-II is your ideal grab 'n' go bass combo amp. G-K's MB II Series combos sport ultra-efficient digital power plants, making them unbelievably lightweight. Another cool innovation is G-K's Chain Out, which lets you connect your MB115 to an MBP powered enclosure to create a big-club-ready combo rig. Tweak the MB115-II's 4-band active EQ and gain control to nail your signature tone with just the right amount of grit. And at a scant 35 lbs., the MB115-II is a 200-watt featherweight that easily fits in your subcompact. Get great bass sound and effortless transportability with the Gallien-Krueger MB115-II.

Gallien-Krueger MB115-II Bass Combo Amp at a Glance:
  • Digital power amp for ultra-efficiency and light weight
  • Chain Out lets you connect your MB115-II to an MBP-powered enclosure
  • Sculpt your sound precisely with onboard 4-band active EQ
Digital power amp for ultra-efficiency and light weight

The Gallien-Krueger MB115-II sports a digital power amp section. Remember when bass amps were huge, heavy beasts? They've been slimming down - and digital amplification is a primary reason. The digital amp in the MB115-II pumps out 200 watts, making this little pup perfect for rehearsals and unplugged-style coffeehouse gigs.

Chain Out lets you connect your MB115-II to an MBP-powered enclosure

Playing a larger venue? Simply plug the Chain Out of your Gallien-Krueger MB115-II into one of G-K's MBP powered enclosures, and you've got a bigger-gig rig that's still highly portable. This is the perfect way to increase your volume for larger venues.

Sculpt your sound precisely with onboard 4-band active EQ

The Gallien-Krueger MB115-II gives you the tools to shape your sound any way you hear it. You not only get 4-band active EQ, but the MB115-II also gives you a gain control so you can dial in the perfect amount of grit.

Gallien-Krueger MB115-II Bass Combo Amp Features:
  • Digital power amp for ultra-efficiency and light weight
  • Chain Out lets you connect your MB115 to an MBP-powered enclosure
  • Sculpt your sound precisely with onboard 4-band active EQ
  • Aux in lets you plug in your MP3 player for practice
  • XLR direct out - go straight into the board
  • Built G-K tough
Rock with a compact and lightweight bass combo - the Gallien-Krueger MB115-II!

Additional Media

Bass Guitar Amp Buying Guide

Tech Specs

Type Solid State
Number of Channels 1
Total Power 200W
Speakers 1 x 15"
EQ 4-band
Inputs 1 x 1/4" (passive, active), 1 x 1/8" (aux in)
Outputs 1 x 1/4" (headphones), 1 x XLR (direct out), 1 x XLR (chain out)
Height 23"
Width 19"
Depth 14.5"
Weight 38 lbs.
Manufacturer Part Number 303-0520-C

Customer Reviews

Based on 9 reviews
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Sweet Amp

Bought this Amp for Jazz Gigs needed something light weight but loud. Everything I was looking for and more. Thanks to Jason at sweetwater for recommending this jewel

mb115-II 1x15

I was expecting good, this thing is great. Your sound lives inside, it took me 2 minutes to dial in my groove. The expansion possibilities and speaker size is what got my attention to begin with. Light weight, quiet at idle, smooth, simple. Everything a person could want or need.
Music background: Touring the tri-state area for life


This amp is everything and more for a novice bassist like me. So happy with my choice and with Sweetwater's great customer service! They steered me away from a potentially disappointing choice on my part. Thank you !
Music background: rookie bass player

So Worth the Money

Was looking for a nice growly amp for a bass~ yet could handle the cleaner and lighter tones of a keyboard and synth stack and this cabinet is wondrous. I popped a 3-input Behringer Eurorack UB502 on top and jacked in my keys and the bass all together so that I have more fine control over each unit. I added a Tech 21 Character Series pedal to the bass guitar for some more expression and really now have an amazing rig for gigs and composing. I heard LFOs in my Roland V-Combo's synth voicing that I'd never heard before... This amp *easily* produces the volume needed to compete with a boisterous drummer and blistering lead guitarist. And now, even when I'm holding down the bass end with the keyboards/ piano, it all cuts through and cleanly-- no woollyness or woofing like with smaller amps. Paul Allen is just the best! He always gets back to me about my million questions in a very timely fashion. Thank you Sweetwater!!

GK MB 115-II

A powerful amplifier that could fill an arena
See also: Bass Combo Amps, Gallien-Krueger, Gallien-Krueger Bass Guitar Combo Amps