Description
Some heads make you choose between tone and your spine. The MB500 doesn’t. It’s fewer than 4 lb, eats up less than a single rackspace, and still puts out 500W of the punchy, articulate low-end GK players have chased for decades. Small footprint, no compromise.
The tone-shaping is where this head earns its keep for gigging bassists. GK’s 4-band active EQ gives you real control over your low, low-mid, high-mid, and high frequencies, and the contour switch scoops the mids for that classic slap-friendly growl when you want it. When a song calls for more grit, the footswitchable boost channel adds independent volume and drive so you can jump from clean and round to aggressive and biting without touching a knob mid-song.
Routing options make it flexible for stage and studio work alike. There’s an XLR direct out with a pre-/post-EQ selector and ground lift for clean signal to the board, a tuner out with mute so you can tune silently between songs, an effects loop, and a headphone/line out for quiet practice or recording. Dual Speakon outputs let you run multiple cabs without hassle.
- 500W @ 4 ohms, 350W @ 8 ohms
- 4-band active EQ with contour switch
- Footswitchable boost channel
- Effects loop
- Tuner out with mute
- -10dB pad for active instruments
- XLR out with pre-/post-EQ and ground lift switch
- Two Speakon outputs
- Headphone/line out
- Footswitch included
For bassists who want full GK power without adding weight to the gig bag, the MB500 is built to travel and built to perform.
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