Gallien Krueger MB500 500W Bass Amp Head

£490.00 (including VAT @ 20%)

Available for orderDelivery Information

Item available to order

This item is available to order, and we do not currently have the item in stock.

When you place your order, we will request the item from our supplier as soon as possible. We will dispatch this product to you as soon as it is received from our supplier.

"Estimated delivery to you" is our estimate of when we will be able to deliver the product to you, based on our supplier's normal delivery timescales. If we become aware it is going to take significantly longer than normal to deliver this item, we will let you know, otherwise, we will advise by email or text message when the item has been dispatched from our distribution centre.

Estimated delivery to you: 15th November 2016
FREE Delivery available.

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30 day money back guarantee included

30 day money back guarantee included

Once the product is delivered, you have 30 days to decide that you definitely want to keep it. If you decide it is not suitable for any reason, you can return it back to us for replacement or full refund, including standard delivery charges.

All Products are new unless stated, and include a minimum of one year warranty.

Some items are only eligible for money back guarantee if they are returned to us unused and sealed in the original packaging, and in the case of software, unregistered. These items include:

  • Software
  • CDs & DVDs
  • In-ear Monitors
  • Earplugs and Ear Protection
  • Mouthpieces, Reeds etc… for Woodwind and Brass instruments
  • Mouth / Lip Care Products

We are unable to accept returns of any custom made items designed to work together as a unique package, such as computer system built to a customer’s personal specifications. Exceptions may only be possible with prior agreement of the vendor, and may be subject to a cancellation fee.

Optional: 5 year warranty: £24.50
(Includes 90 day money back guarantee)


The product price includes a one year warranty and 30 day money back guarantee.

However, the Gear4music extended warranty scheme provides an enhanced service, and is designed to offer a higher level of protection than many 'free' warranties offered by some retailers and manufacturers.

The highlights of this enhanced warranty service are:

  • Warranty is extended to 5 years from the date of delivery.
  • Our Money Back guarantee is extended from 30 days to 90 days (terms apply after 30 days)
  • Collection and delivery costs are included for the first two years
  • Claim 50% cash back on the cost of the policy after 5 years if it has not been used!
  • Warranty is transferable if the item is re-sold
  • Loan or replacement equipment will be provided if the product isn't repaired within 30 days
  • If an item can not be repaired, a similar alternative product or cash discount (as defined in this policy) will be offered
  • The policy can be cancelled within 30 days, and at any time after that for a pro-rata discount

Please note that this extended warranty is currently only available on products sold within the EU or EEA, and is subject to the terms and conditions as detailed on the extended warranty certificate provided.

For customers in outlying areas of the country, the price of the Extended Warranty may be marginally higher, due to the potential for higher collection and redelivery transport costs.

This enhanced warranty is in addition to the standard Gear4music and manufacturer warranty policies, and the Gear4music terms and conditions of trade. No statement or condition of sale contained within these terms affects or restricts your statutory rights as defined under the Consumer Contracts Regulation 2014.

Product Ref: 19864

  • FREE 3m Jack - Jack Cable

Gallien Krueger MB500 500W Bass Amp Head


Weighing in at less than 4 lbs. and taking up less than one rack space, the MB delivers 500 watts of power in a package that will easily fit into your gig bag. Featuring GK?s legendary four-band active EQ and contour control, the MB500 allows you to tweak your tone before hitting the digital power section. In addition to the generous tone shaping capabilities, the preamp section also features a footswitchable boost channel with independent volume control to dial in just the right amount of grind and level boost when needed.

Exclusive Gear4music offer: order this item now, and you'll get a FREE 3m Jack - Jack Cable

Product Ref: 19864

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  • 15.9%
  • £17.12
  • £616.32
Pay by Finance

To make it as easy as possible for you to get the gear you want, we offer a range of instant finance options. If you spend £250 or more online, you can choose to pay over 48, 36 or 24 months. The majority of decisions are given instantly, so you could get your new gear sooner than you thought!

Representative Example

To help you understand how our finance options work, the examples below are based on a total order value of £250:

Finance APR Deposit to Pay Payments Total Payable
Classic Credit 48 Months 14.9% 14.9% No Deposit 48 months: £6.83
Final payment: £6.83
No settlement fee
Classic Credit 36 Months 15.9% 15.9% No Deposit 36 months: £8.65
Final payment: £8.65
No settlement fee
Classic Credit 24 Months 18.9% 18.9% No Deposit 24 months: £12.41
Final payment: £12.41
No settlement fee

How to Apply

Applying for finance couldn't be easier - if your order totals £250 or more, simply proceed through the checkout as normal, then select Pay by Finance on the payment page, then click the orange APPLY FOR INSTANT FINANCE button. This will start your application with V12 Retail Finance, our finance partner, and completing this form should take approximately 10 minutes.

You should get an instant answer on whether your application has been successful, though in some rare cases V12 may need to look at the application in more detail.

Please note: This is only available on orders placed via the website and is not available in store or via phone currently.

Full Description

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From relatively humble begnnings in the late 60's Gallien Krueger Bass Amplifiers are renowned for excellent build quality as well as providing Bass players with a distinctive sound. This MB Combo Amp is a perfect continuation of a legacy that is going from strength to strength.

The choice of many iconic Bass players including The Red Hot Chilli Peppers' Flea, Duff McKagan of Velvet Revolver (formerly of Guns N Roses) and Tony Kanal of No Doubt. As well as these iconic bassists, Gallien Krueger is fast becoming the go to name for quality Bass Amplification for newer stars too, stars like Johnny Christ of Avenged Sevenfold and Bobby Lee Bruns of Soulfly.


  • 500 watts @ 4 ohms, 350 watts @ 8 ohms
  • 10dB pad
  • Four-band active EQ w/variable contour
  • Effects loop and tuner output with mute
  • Headphone/line output
  • XLR out, pre/post EQ & ground lift switch
  • Boost footswitch
  • Two speakon outputs
  • 10.75x8.5x1.75