Gallien-Krueger MB Fusion 500W Tube Preamp Ultra Light Bass Amp Head

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Gives you an all-tube preamp, 4-band EQ, and 500W of power.

The 500W Gallien-Krueger MB Fusion tube preamp incorporates the same all-tube preamp of the GK Fusion 550 and maintains the amazing portability of the MB2-500. The ultra-light bass amp delivers 500W at 4 ohms, 350W at 8 ohms, and is equipped with an all-tube, 3x12AX7 preamp. The GK MB Fusion bass head also has a 4-band active EQ, variable contour with mid frequency select, and Deep and Bright switches, so you've got total tonal control.

  • 500W Digital power amp
  • All tube preamp (Three 12AX7s) w/ 4-band Active EQ
  • Footswitchable Boost w/ Volume control
  • Variable contour with mid frequency select
  • Deep and Bright switch
  • Mute switch
  • Active/passive switch (-14dB)
  • Effects loop
  • Line out, headphone out and Tuner out
  • XLR out with pre/post EQ and ground light
  • 2 Speakon outputs
  • Footswitch included

Get portable, powerful tone that goes wherever your sound takes you—add the MB Fusion to the cart now.


MB Fusion 500W Tube Preamp Ultra Light Bass Amp Head Specifications:

  • 4 lb.
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by PowerReviews
Gallien-KruegerMB Fusion 500W Tube Preamp Ultra Light Bass Amp Head

(based on 1 review)

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Reviewed by 1 customer

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(14 of 22 customers found this review helpful)


GK MB Fusion


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Comments about Gallien-Krueger MB Fusion 500W Tube Preamp Ultra Light Bass Amp Head:

Having used a multitude of bass heads over the past 40 plus years, and having to wait on this to come out for almost two years since its announcement , I can truly say it was worth the wait.
The warmth and punch of this mini is unreal, and compared to My 80 pound all tube Head, I prefer the unique GK sound, (very smooth, to very gutsy) and has all the control you could possibly need.

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