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Gallien-Krueger MB108 1 x 8-inch 25-watt Bass Combo Amp

25W, 1 x 8" Bass Combo Amplifier with Digital Power Amp, 3-band EQ, 1/8" Aux in, and 1/8" Headphone Out
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Item ID: MB108
Gallien-Krueger MB108 1 x 8-inch 25-watt Bass Combo Amp
Price:$399 and 00 cents
Special Financing - Ends Aug 2, 2026. $12/month with 36 month financing*

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Gallien-Krueger MB108 1 x 8-inch 25-watt Bass Combo Amp
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Price:$399 and 00 cents
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Frequently Asked Questions

Gallien-Krueger MB108 1 x 8-inch 25-watt Bass Combo Amp

Q: Who is the Gallien-Krueger MB108 bass combo amp designed for?

Q: What kind of sound quality and tone shaping does the MB108 offer?

Q: What input and output options does the Gallien-Krueger MB108 have?

Q: How portable is the Gallien-Krueger MB108 bass combo amp?

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Ditch the Bulk, Not the Tone!

Everyone needs a practice amp, and the ultra-portable MB108 combo bass amplifier by Gallien-Krueger is just the thing to satisfy any serious player. It may be small, but this 25-watt, 1 x 8" bass combo provides you with an impressing amount of punch, clarity, and volume. A 3-band EQ lets you dial in the tone for any bass you play or space you play in. For solo practice, you really can't complain about the simple 1/8" aux in and headphone out, and when you need a grab-and-go amp you can toss in your car without folding down the seats, you'll be mighty glad you picked up this Gallien-Krueger MB108.

Gallien-Krueger MB108 Combo Bass Amplifier at a Glance:
  • Surprisingly loud for such a tiny bass amp
  • Grab-and-go convenience for any bass-playing occasion
  • Perfect for rocking out solo or jamming along to your tunes
Surprisingly loud for such a tiny bass amp

How loud can a 25-watt bass amp really be? Plug into a Gallien-Krueger MB108 combo and you'll get the picture. While you may not be shaking the foundation of your local arena any time soon, you will have more than enough volume to fill your garage, living room, or other practice space with ease. The 8" ceramic Paragon speaker delivers nice and punchy lows with enough midrange definition that you can articulate notes clearly without tubbing out.

Grab-and-go convenience for any bass-playing occasion

Even at Sweetwater, where we have access to the hottest bass rigs around, many of us still rely on small practice amps like the GK MB108 all the time. After all, who wants to haul around a half stack when you just want to jam with your friends? With an MB108, you can comfortably toss your gear in the passenger seat and take off to wherever the music's happening. What's more, this undersized amp offers a full 3-band EQ, so you can get the best possible sound no matter where you end up or what bass you plug in.

Perfect for rocking out solo or jamming along to your tunes

Sometimes, woodshedding is the only way to make an important passage stick. But you don't have to subject your family and neighbors to your laborious repetition when you practice solo with your MB108 combo bass amp. That's because Gallien-Krueger gave the MB108 a dedicated 1/8" headphone output. At the same time, they also hooked you up with an 1/8" stereo input, so you can plug in your smartphone or portable media player and play along to your favorite songs.

Gallien-Krueger MB108 Combo Bass Amplifier Features:
  • Power and punch packed into a perfectly portable bass combo amplifier
  • 25 watts pushing an 8" ceramic Paragon speaker delivers tons of volume and focused punch
  • 3-band EQ lets you dial in your sound no matter what bass you plug in or where you play
  • Plug your portable media player into the 1/8" stereo auxiliary and rock out with your tunes
  • Connect a set of headphones and rock out without disturbing the neighbors
For practice, rehearsal, and even small gigs, the Gallien-Krueger MB108 combo bass amp delivers!

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Tech Specs

  • Type: Solid State
  • Number of Channels: 1
  • Output Power: 25W
  • Speakers: 1 x 8"
  • EQ: 3-band (Active)
  • Inputs: 1 x 1/4", 1 x 1/8" (aux in)
  • Headphones: 1 x 1/8"
  • Cooling System: Thermal and RF Protection
  • Power Source: Standard IEC AC cable
  • Height: 15.5"
  • Width: 12.5"
  • Depth: 14.5"
  • Weight: 17 lbs.
  • Manufacturer Part Number: 303-0810-A

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Reviews

Another level
This is much more than a "practice" amp. Its performance, quality and tonal character put it on a higher level than others of similar specs. The price reflects that though, but you get, in my opinion, a superior product. I feel like I really got what I paid for and if in the future I need something larger, I won't hesitate to get one of its bigger brothers.
All about that bass...tone.
This little amp has real GK character and airiness. Think Duff's intro to "You Could be Mine". I use a compressor but this unit can stand on it's own and sound great doing it. Active EQ is very musical and gives your tone multiple personalities. If I ever upgrade, it will be another GK.
Music background: Electric Blues Guitar and Bass
Size does not matter.
This little guy can be a practice amp to a rehearsal and small gigs amp. It has a great tone, easy to use and it have the power to be more than a practice amp.
Music background: Guitar aficionado
Super sound in a small package
This little amp sounds amazing. The volume produced is very surprising. The knobs really make a big difference to the sound, so you can dial in just what you want.
Music background: Playing many years
Great value
Wasn't expecting much, for a low price amp especially for a base and a 12in speaker but boy was I blown away at the value the sound and the quality of workmanship of this amp.
Music background: Bass player