Description
Some heads make you choose between raw power and portability. The MB800 doesn’t. This thing puts out 800 watts at 4 ohms (500 at 8 ohms) and still tips the scale at just 4.9 lbs, so you can load in for a festival stage or a basement bar without throwing your back out either way.
At its core is a fully discreet FET preamp — the same field-effect transistor technology GK has used for decades in their famed G.I.V.E. boost circuit, now running through every stage of the preamp. That means you get real touch response and harmonic depth, not a sterile digital feel. Dial it clean and warm for jazz gigs, or push the gain and let that classic GK snarl come through for rock and metal sets. The four-band active EQ with variable contour gives you real shaping power, whether you’re carving out a scoop or fattening up the mids.
Every control lights up so you can read your amp’s status at a glance in a dark club — input clip, tuning mute, Gain A, Gain B/Level-B, power amp clipping, limiter status, and EQ/contour settings are all visible without squinting.
- 800W @ 4 ohms / 500W @ 8 ohms
- Discreet FET preamp
- Push-activated Gain A/B with limiter defeat
- 10dB pad
- Four-band active EQ with variable contour
- Effects loop and tuner mute
- XLR out, switchable pre/post EQ
- Defeatable limiter
- Two Speakon outputs
- Headphone/line output
- 10.75 x 8.5 x 1.75 in, 4.9 lbs
Built for bassists who need serious volume without a serious rig to haul.
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