Gallien Krueger MB 800 Bass Head


Feather Weight

With its switch mode power supply and Aluminum chassis, the MB 800 weighs in at only 4.9 lbs. (2.2kg)

5 Bass Heads Under £1,000... Shootout!


Illuminated knobs and switches show the amplifier's state at a glance, even on the darkest stages.

Smart Knobs

Push-push knobs are used to select multiple voicing, channel and limiter options, the knob indicator color indicates the operation mode

Dual Channel Flexibility

Foot switchable channel switching for on the fly volume boost or additional grind.

Ultra Portable Power

Drops into your gig bag for effortless transport to travel dates, rehearsals and enough power for even large venues.


Balanced DI with Pre/Post switch to feed the house, Foot Switch Jack, Tuner output, FX Loop for connecting outboard accessories, Headphone Output for silent practice, Line Out plus “Chain Out” to drive GK’s MBP powered cabinets. Two twist lock speaker connectors ensure reliable and safe cabinet connections.

Harmonic Complexity

The signal path for gain, EQ, contour and the DI are 100% discreet F.E.T. driven to deliver a fatter response and "tube like" feel.

Variable Q Equalizer

Inherited from the 800RB, this unique design varies the EQ bandwidth to retain a musical response even at extreme settings.

High Tech Power

Switch mode power amp and supply deliver a crushing 800 Watts of cool running power.

Intelligent Cooling

Temperature controlled fans keep the amplifier cool delivering only the required amount of air, reducing noise and dust intake.


Thoughtful handle design protects the front panel controls. Internal sensing circuitry will indicate problems on the power switch ring. Blue is good!   


  • Power @4ohms: 800w
  • Dimensions: 10.75 x 9 x 1.75"
  • Weight 4.9lbs
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