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

Item #: 
1273888005341   POS #:113572887
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Product Description:

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 w...  Click To Read More About This Product

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Overview

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.

Features

  • 500 watts @ 4 ohms, 350 watts @ 8 ohms
  • All tube preamp (Three 12AX7s)
  • 4-band Active EQ
  • Variable contour with mid frequency select
  • Deep and Bright switch
  • Mute switch
  • Active/passive switch (-14dB)
  • Effects loop
  • Tuner out
  • XLR out with pre/post EQ and ground light
  • 2 Speakon outputs
  • 4 lb.
Specifications
4 lb.
Pro Coverage
Manufacturer's Warranty
2 years on electronics and 1 year on speakers.


Customer Reviews
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Review Snapshot

by PowerReviews
Gallien-KruegerMB Fusion 500W Tube Preamp Ultra Light Bass Amp Head
 
5.0

(based on 4 reviews)

Ratings Distribution

  • 5 Stars

     

    (4)

  • 4 Stars

     

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  • 1 Stars

     

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Reviewed by 4 customers

Displaying reviews 1-4

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(10 of 10 customers found this review helpful)

 
5.0

The best lightweight head on the market

By Jerm

from Hamilton, Ontario

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

Bought this head new and let me tell you, it is one of the best heads on the market. The sounds you can get are awsome, the tube warmth is fantastic on this little head and loud as hell, i have played a 59 p-bass, Jass Bass, Stingray, 4003 Rickenbacker and a Lakeland usa Bass with the heads and i cant get a bad sound with any of these's Basses with the MB Fusion Head. First thing i did after playing live with this head was to sell my Little Mark 3 Head Because i knew i would not use the Little Mark head Again. Just Go Try one of These's heads out for youself. Gk has a winner here People.

(3 of 3 customers found this review helpful)

 
5.0

best bass amp i've ever owned

By robert

from santa clarita, ca

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

i have been playing 'forever'. i was very much an SWR fan...until i bought this amp. i own a number of basses but most regularly use my ibanez sr755 and fretless p-bass (when my shoulder isn't sore). i was using a peavey bass amp and, occasionally a line 6 LD150 and running out of headroom. not that we play loud, but the 'beef' was missing and the speakers were starting to flubber. so i borrowed this amp and a schroeder 1512L cabinet. awesome. that's pretty much all i can say. well worth the money, no question. i will be happy with this probably until i go completely deaf :)

 
5.0

The tiny POWER LIFTER

By Cwyn

from Po Dunk Town, CT

About Me Professional Musician

Pros

  • Easy To Use
  • Excellent Sound
  • Good Warmth
  • Portable
  • Powerful

Cons

    Best Uses

    • Events
    • Performances

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

    Having played for years using MarkBass gear (which is terrific stuff) I felt I wanted a change in sound. I'd had an older GK 210 combo years ago and loved the sound, but the power wasn't there so I pretty much wrote off GK and searched for something else. I've had Ampeg, Accoustic, Ashdown, and settled in with MarkBass. Fast forward 7 years and here I was, in GC searching around, bought a GK 1001RB to match my new 410 RHB cab, but also needed something portable for some of my other projects. Picked up a couple 112 NEO cabs and then saw this little beast, sitting alone in the corner. Tried it out and was blown away. Has the punch of the 1001RB but so much more. Bought it on a Friday, used it that night and the following 2 nights, 1 outdoor, 1 indoor and a small cafe for a duo...each time I was more in love. Where has this been? Great features, great portable, Truly a great amp. I'll be leaving the 1001RB home more often and throwing this baby in my gig bag. Seriously, if you're on the fence, don't hesitate.

     
    5.0

    Heavy in Power/Tone, but Light in Weight

    By The Bass is TOO Loud!!

    from Sacramento

    About Me Experienced

    Verified Buyer

    Pros

    • Easy To Use
    • Excellent Sound
    • Good Warmth
    • Portable
    • Powerful

    Cons

      Best Uses

      • Performances

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

      I run the MB Fusion 500 through GK Generation One 2X12 and 1X12 cabinets, or two 1X12 cabinets, and that combination rules the stage; indoors or out. The three 12AX7 tube preamp on the MB Fusion 500 provides the warmth that a pure solid state head wishes it could have. The power behind 500 watts is more than enough to meet my needs, but it's a blast to hear (and feel) when it is unleashed with three 12 inch drivers. Cannot get a bad sound out of any my basses (Fender, Rick, Yamaha, Gibson or Epi Elitist). GK is a great company that will stand by their products, and its customers.

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