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Gallien-Krueger MB800 800W Ultralight Bass Amp Head


Product Description

Continuing the evolution of the MB Series, the MB800 bass amp head from Gallien-Kreuger features incredible output, increased functionality, and a completely discreet FET-driven preamp. With 800 massive "GK watts" of power, the MB800 can handle even the largest venues without breaking a sweat, and at 5 lb., neither will your roadie!

All of the MB800's controls are lit to indicate the current operating status, including input clip, tuning mute, Gain A, Gain B/Level-B, power amp clipping, limiter enable, and EQ/Contour settings. The same FET technology used to create the legendary boost (G.I.V.E.) circuit found in all GK amplifiers for over 30 years is used in every stage of the MB800 preamp. Using FET devices to drive the GK four-band active EQ, Contour, and Gain allows the MB800 to transition seamlessly from a full, warm, clean tone to full-on GK growl.


  • 800W @ 4 ohms, 500W @ 8 ohms
  • Discreet FET preamp
  • Push-activated Gain A/B and limiter defeat
  • -10dB pad
  • 4-band active EQ with variable contour
  • Effects loop and tuner mute
  • XLR out, pre/post EQ
  • Defeatable limiter
  • Two Speakon outputs

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