Sweetwater®

24 month financing on over 90 top brands. Learn more »
(800) 222-4700
  • Español: (800) 222-4701
Cart

Bass Guitars > Bass Guitar Amps > Bass Guitar Amp Heads > Gallien-Krueger MB Fusion 500 Watt Bass Head

Gallien-Krueger MB Fusion 500 Watt Bass Head

Item ID: MBFusion

500-watt Bass Amplifier Head with All-tube Preamp, 4-band Active EQ, 14dB Pad, Dual Gain Settings, and Boost Switch

Yes, It's In Stock!

This item is available for immediate delivery. You'll enjoy the fastest delivery time in the industry with our centrally-located warehouse and latest shipping cut-off times.

Get More Value From Sweetwater

or make 3 easy payments
Limited Time Offer

24 Months Interest Free Financing!

On purchase of Gallien-Krueger products made with your Sweetwater Card now through January 31, 2014.
Click here for details

From Our Research Team:

Big Tube Tone in a Tiny Package!

Get the power you need and the tone you crave with the Gallien-Krueger MB Fusion bass guitar amplifier head. A six stage tube preamp gives you the rich warmth of tubes, and the punchy solid state power amp delivers the power that GK is known for. It delivers 500 watts of power in a less-than-1U amp that weighs under 4 lbs. - easily small enough to fit in your gig bag. Professional additions such as effects loop, DI, tuner out, and speakON connectors make this the perfect amp head for any level of musician. Call Sweetwater and upgrade your rig with the hybrid Gallien-Krueger MB Fusion bass amp head today!

Gallien-Krueger Fusion 550 Bass Guitar Amplifier Head at a Glance:
  • Big tube tone
  • Sculpt your sound precisely with onboard 4-band Active EQ
  • Extremely functional

Big tube tone
Capture the tone you want with the 3-rack space Gallien-Krueger MB Fusion. The pre-amp features three 12AX7 tubes for real tube tone. From rock to fusion to slap to reggae, the MB Fusion has your back. Pumping out 500W of low end, this amp is perfect for any sized venue. An XLR direct out can be used for recording or running to the live mixer.

Sculpt your sound precisely with onboard 4-band Active EQ
The Gallien-Krueger MB Fusion gives you complete control over your sound. Sculpt your tone with the 4-band active EQ, and Contour controls, then add just the right amount of growl with GK's gain control. All the tools you need to dial in your perfect bass sound are onboard the Gallien-Krueger MB Fusion.

Extremely functional
As a gigging musician, you need to be flexible and have gear that is flexible too. The Gallien-Krueger MB Fusion is ready for pretty much anything. An effects loop lets you utilize your favorite pedals after the EQ section of the amp. An XLR direct out sends your signal out pre- or post-EQ, and has a ground lift switch.

Gallien-Krueger Fusion Bass Guitar Amplifier Features:
  • Dual-channel hybrid bass guitar amplifier head
  • Sculpt your sound precisely with onboard 4-band Active EQ
  • Effects loop for using your favorite pedals
  • XLR direct out - go straight into the board
  • Built G-K tough
  • 10.75" x 8.5" x 1.75"
  • Weighs 4.5 lbs.

For a flexible bass head that's small enough and light enough to go anywhere, check out the Gallien-Krueger MB Fusion!
Specification Detail
Type Hybrid
Number of Channels 2
Power 500W @ 4 ohms, 350W @ 8 ohms
Effects No
Compression No
EQ 4-band EQ
Amp Modeling NO Amp Modeling
Number of Models No Amp Models
Number of Tubes 3
Preamp Tubes 3 x 12AX7
Power Tubes No Power Tubes
Inputs 1 x Instrument
Outputs 2 x speakON, 1 x XLR
Footswitch I/O Yes
Effects Loop Yes
Height 1.75"
Width 10.75"
Depth 8.5"
Weight 4.5 lbs.
Manufacturer Part Number 302-0540-A

MB Fusion 500 Watt Bass Head Image Gallery

Can We Help?

Sweetwater's friendly and knowledgeable Sales Engineers are regarded as the most experienced and educated professionals in the music industry, with extensive music backgrounds and intense training on the latest products and technologies. As your personal contact here at Sweetwater, they are available to provide personalized advice any time you need it.
Call toll-free (800) 222-4700 or E-mail us

Recommended Accessories

My experience was outstanding! I feel like I'm back in the 1950's when customer service was worth its weight in gold! I love the candy and personal phone call to acknowledge my order. You deliver the goods with superior efficiency, expediency and true concern for the customer.


Patty, El Sobrante, CA

Be the first to review this product

Also popular

See Also: Bass Amp Heads , Gallien-Krueger , Gallien-Krueger Bass Guitar Amp Heads

Gallien-Krueger MB Fusion 500 Watt Bass Head

Today's Payment: $243.00
Includes $10 processing fee
Payment 2: $233.00
In approx. 30 days
Payment 3: $233.00
In approx. 60 days

Buy Today, Make

Sweetwater's Flexible Payment Plan is a convenient, interest-free way to buy gear now and stretch your purchase across three budget-friendly payments. Simply choose the "3 Easy Payments" option in your cart, and we'll divide your purchase amount into three convenient payments, billed to your current MasterCard, Visa, Discover, or American Express card. There is a $10 processing fee for using this service, and your billing address must be in the United States to be eligible. It's just another way we make shopping at Sweetwater easy and convenient!

Get your Gallien-Krueger MB Fusion 500 Watt Bass Head now and spread out the payments!


This program is subject to credit approval. We will pull a copy of your credit report to approve your application.

Sweetwater Sound Inc.
5501 U.S. Hwy 30 W
Fort Wayne, IN 46818
Get Directions »

Toll Free (800) 222-4700
Español (800) 222-4701
Local (260) 432-8176
Fax (260) 432-1758
E-mail us

Phone & Retail Store Hours:
9–9 Monday–Thursday
9–8 Friday
9–7 Saturday
(All hours listed are Eastern Time.)

© 2013 Sweetwater Sound Inc. All rights reserved. Please read our Terms of Use and Privacy Policy. Links | Press Releases