Gallien-Krueger MB212-II - 2x12" 500-watt Bass Combo

500W 2 x 12" Bass Combo Amp with Digital Power Amp, 4-band Active EQ, Aux in, XLR Direct Out, and Chain Out
Gallien-Krueger MB212-II - 2x12
Gallien-Krueger MB212-II - 2x12
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Gallien-Krueger MB212-II - 2x12" 500-watt Bass Combo
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Grab 'n' Go Bass Combo

The Gallien-Krueger MB212-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 MB212-II to an MBP-powered enclosure to create a big-club-ready combo rig. Tweak the MB212-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 37 lbs. the MB212-II is a 500-watt featherweight that easily fits in your subcompact. Get great bass sound and effortless transportability with the Gallien-Krueger MB212-II.

Gallien-Krueger MB212-II Bass Combo Amp at a Glance:
  • Digital power amp for ultra-efficiency and light weight
  • Chain Out lets you connect your MB212-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 MB212-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 MB212-II pumps out 500 watts, making this little pup perfect for rehearsals and larger venue gigs. Dual 12" neodymium speakers deliver big bass tones in a lightweight package.

Chain Out lets you connect your MB212-II to an MBP-powered enclosure

Playing a larger venue? Simply plug the Chain Out of your Gallien-Krueger MB212-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 MB212-II gives you the tools to shape your sound any way you hear it. You not only get 4-band active EQ, but the MB212-II also gives you a gain control so you can dial in the perfect amount of grit.

Gallien-Krueger MB212-II Bass Combo Amp Features:
  • Digital power amp for ultra-efficiency and light weight
  • Chain Out lets you connect your MB212 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 MB212-II!

Additional Media

Bass Guitar Amp Buying Guide

Tech Specs

Type Solid State
Number of Channels 1
Total Power 500W
Speakers 2 x 12" Neodymium Speakers
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 26"
Width 19"
Depth 14.5"
Weight 41 lbs.
Manufacturer Part Number 303-0570-C

Customer Reviews

Based on 18 reviews
Write your review

Gallien Kruger mb212 combo amp

Short and sweet. I'm new to playing and I've had carvin 15s ampeg 10s a 610 cab and tc electronics head. Thought I had to have big stuff not true. This 212 is nasty and it only weighs like what 46 lbs. oh yeah loves pedal too. Looks nice sounds nice and to my surprise handles my five string and techno soooper nice. Oh yeah Marcus was hella cool even called me twice to make sure I was good with the product. Cant go wrong with it
Music background: Just like to tan stuff out. Started doing the bass riffs for techno

Best Amp I've Owned

Seriously impressed by this amp. My first GK. Lightweight (41 lbs?!), powerful (500 Watts?!), stylish. Very logical, intuitive controls. The boost feature is excellent for adding some snarl. I use it on the road with a rock band, along with a Ibanez SR 505 and through a SansAmp. It works wonders, even in large auditoriums. It gets SUPER loud, and never seems to be straining. The horn is a nice touch, and even makes an acoustic guitar sound alright through it! I look forward to buying the 500w extension cab some day, to make this rig even more incredible. It's a top-notch amp, in my humble opinion.
Music background: Professional Freelance Bassist

Gallien-Krueger MB212-II -2x12" 500watt bass combo

Totally impressed. Fills the room inside and out with a full sound. Used it at a outside show with at least 10,000 people and it kicked butt. Thank you.


This rig will handle any venue. I also teamed it with the powered extension cabinet for 1000w. I'll probably never need quite that power, but an old friend once advised me to get the biggest and best that I could afford. I've applied that to most any purchase I've ever made. I've never regretted it. I can haul this amp and my electric upright bass in one of the smallest Toyotas ever made. The amp has a "punch" and a very warm tone. At about 40 pounds there are no issues with weight. With the strength, power, and warm tone, I would call it "THOR'S VELVET HAMMER".

Very punchy amp with loads of volume and low end

This amp really did blow me away from the very first time I plugged in! It is easily the loudest combo amp I have ever owned. And I have had many since 1969. I needed a light combo amp to take to practice and to handle small gigs. I play 5 string basses and it handled everything below E extremely well and produced clear mids and nice warm highs as well. I used it in practice last night with my band which takes place in a large shop. Everyone could hear me clearly. I couldn't turn it up a lot or I would have been assaulting our ears. This combo is much better than I expected. You won't be disappointed.
See also: Bass Combo Amps, Gallien-Krueger, Gallien-Krueger Bass Guitar Combo Amps