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Gallien-Krueger MB500 500W Ultra Light Bass Amp Head  

Item #: 
1273888005370
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Weighing in at fewer than 4 lb. and taking up less than one rackspace, the MB500 delivers 500W of signature GK tone in a sleek, compact, modern head. Boasting GK's legendary 4-band active EQ and conto... Click To Read More About This Product

IN STOCK & READY TO SHIP

Gear returned in mint condition. If you're looking for a virtually new instrument in possibly less-than-perfect packaging, this is a great value.
  • Includes 45-Day, No-Hassle Returns
  • Includes full manufacturer's warranty
  • Includes 2-Year Free Warranty on all guitars and basses
Gear returned in great condition, with only minor signs of use, such as slight scuffs or pick marks. It looks and plays like new and may be considered an equivalent to display units found in retail stores.
  • Includes 45-Day, No-Hassle Returns
  • Includes full manufacturer's warranty
  • Includes 2-Year Free Warranty on all guitars and basses
Price:
$5290.00
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Overview

Weighing in at fewer than 4 lb. and taking up less than one rackspace, the MB500 delivers 500W of signature GK tone in a sleek, compact, modern head. Boasting GK's legendary 4-band active EQ and contour control, the MB500 lets you tweak your tone to perfection before hitting the digital power section.

In addition to its generous tone-shaping capabilities, the preamp section has a footswitchable boost channel with independent volume control to dial in just the right amount of grind and level boost when needed.

The MB500 is stage- and studio-ready with an XLR direct out with pre-/post-EQ selector and ground lift. Also offers a tuner out with mute, FX loop, headphone/line out, and dual Speakon outputs.

Features
  • 500W @ 4 ohms, 350W @ 8 ohms
  • Digital power amp
  • 4-band active EQ with contour switch
  • Footswitchable boost channel
  • Effects loop
  • Tuner out with mute
  • -10dB pad for active instruments
  • XLR out with pre-/post- EQ and ground lift switch
  • Two Speakon outputs
  • Headphone/line out
  • Footswitch included
Specifications
  • 4 lb.
    Width: 10-3/4"
    Depth: 8-1/2"
    Height: 1-3/4"
Warranty
MANUFACTURER'S WARRANTY
2 years on electronics and 1 year on speakers.


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  • Accidental damage protection (new gear only)
  • Expedited repair
  • Free shipping (for returns or repairs)
  • 100% coverage for commercial use
  • Extended return period
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  • No lemon guarantee
  • Free transfer of coverage to a new owner
  • Repair costs covered for up to three years from date of purchase
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  • Customer Reviews
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Review Snapshot

by PowerReviews
Gallien-KruegerMB500 500W Ultra Light Bass Amp Head
 
4.9

(based on 17 reviews)

Ratings Distribution

  • 5 Stars

     

    (16)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

Reviewed by 17 customers

Displaying reviews 1-10

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(19 of 19 customers found this review helpful)

 
5.0

MB2-500

By Christopher

from Des Moines, Ia

Comments about Gallien-Krueger MB500 500W Ultra Light Bass Amp Head:

Quite Possibly the best bass amp I have ever owned. I've played it with my P bass, Jazz bass, Peavey cirrus bass, and upright bass and there seems to be no limit to this little monster! It works sonically well with all my bass cabs from a 2x10, to 1x15, and 1x12. If your traveling or need to carry your amp and infant son. this amp does it all! Well worth the money and outdoes my Ampeg Portabass 800!

(19 of 19 customers found this review helpful)

 
5.0

Mighty Mite

By Richard

from Somers, NY

Comments about Gallien-Krueger MB500 500W Ultra Light Bass Amp Head:

This is a great little amp. I've used it on 5 gigs so far(2 weeks). It sounds clear and full and weighs 32 lbs less than my old rig. I am also impressed by how coolly it operates. A the end of the gig, it's just luke warm, and I play pretty hard and loud. Overall I would not hesitate to recommend this amp. It was out of stock when I placed my order, but within a day or two I received a shipped notice and had the amp (with free shipping) within a week of placing the order.

(16 of 18 customers found this review helpful)

 
5.0

Small amp- big sound

By Obiwan

from Norwalk, California

Comments about Gallien-Krueger MB500 500W Ultra Light Bass Amp Head:

GK's version of this mini amp. Many mfrs. use the power amp, made by Bang and Olafson, and combine it with their own preamp, such as Eden, Gallien Krueger, Markbass, etc.. This is a good amp for the price, and very portable. Good for small gigs. One caveat: on earlier models, if left on for a long time, they tend to overheat and distort until turned off and on again. Newer units tend not to do this. In any case, there are local techs who can fix this problem under warranty. So if you like the tone delivered by GK preamps, considered this and a good 2X10 or 4X10 for small gigs.

(9 of 10 customers found this review helpful)

 
5.0

Good things come in small packages!

By James

from Detroit, Mi

Comments about Gallien-Krueger MB500 500W Ultra Light Bass Amp Head:

I have been a serious player for many years and I have had many heads in my arsenal. I admit that my ultimate dream has always been a Mesa Boogie Head. However, costs and the fact that they DON't negotiate or allow dealers to have always kept me away from the cash register. GK has made it possible to enjoy the tight, thick, crisp edged sound that I have always searched for without the staggering sticker! To add to the bliss, this head fits right into my Bass case!. I carry less, while able to plug in and drive an SWR Megoliath 8x10 cabinet on stage while shooting sounds through the built in direct box into the house. Marriage is truly made in heaven..lol. And if that wasn't enough, I can use the footswitch (included) to kick this little Sheba into BOOST and curl a few ears during my solo. Yes, this is indeed the Bass head that has just what the audience would appreciate..good sound..as well as me...LOW COST!

(5 of 6 customers found this review helpful)

 
4.0

Great Amp in Small Package!!!

By Rob Norton

from New Orleans, LA

Comments about Gallien-Krueger MB500 500W Ultra Light Bass Amp Head:

GK really came out with a nice Class D amplifier! The tone is classic GK very similar to the 700/1001RB series of amps, but in a tiny package! For gigs where portability is an issue, this head is just awesome. It is the lightest piece of gear I have including my pedal board! I've played it through both Epifani and Genz Benz cabs on gigs and been happy with it each time.

(4 of 4 customers found this review helpful)

 
5.0

A small box of thunder!

By Billy V

from Easton PA

Comments about Gallien-Krueger MB500 500W Ultra Light Bass Amp Head:

The GK is packed full of power and features. I will say after having the amp a year, the volume started to cut in and out. I contacted GC and GK and they directed me to a GK repair center and within the week my amp was back in action. Great customer service by all parties. Back to the amp; paired with a 1x12 EA Euphonic Audio cab, that setup will break down walls. Just the right amout of top end cut with tight bottom.

(4 of 7 customers found this review helpful)

 
5.0

Nice but

By Sylvester Snap Andrews

from New Orleans,La.

Comments about Gallien-Krueger MB500 500W Ultra Light Bass Amp Head:

This amp is great for it's size,but it doesn't have the big bottom end and crisp highs as it's big brothers.I traded mine in for a GK 400 RB. Its light but has the big bottom and highs.Two-hundred dollars less. looking for small? OK go and get the MB500. Want small and muscle get the GK 400 RB.

(4 of 4 customers found this review helpful)

 
5.0

Life Changing

By Jason Littlefield

from San Diego

Comments about Gallien-Krueger MB500 500W Ultra Light Bass Amp Head:

I wanted to be mad at GK for sending me an MB500 that was missing the limiter switch, but after having it serviced, I have decided to sell off my heavier gear. In fact, I just ordered an MB200 as a backup and for smaller gigs. I used to hustle a 40lb combo to my small gigs and a 100lb combo (PLUS A 50lb ext. cab) to my big gigs. Now, I just put my 3.5lb head in my instrument case and take either my 20lb Promethean 1x10 cab or my 75lb 2x15 cab. I have effectively cut both my rig's total weight in HALF without sacrificing tone and quality! Any gigging bassist HAS TO appreciate that! I was scared of digital circuitry for a few years. Not anymore. When I play gigs that provide backline, I still pack my MB500 because I'd rather use it than most of the heads provided. Plug it into a Ampeg 8x10 and it will PUNCH! Buy one, TODAY!!

(3 of 3 customers found this review helpful)

 
5.0

Versatile Head

By Scott

from Boulder, CO

Comments about Gallien-Krueger MB500 500W Ultra Light Bass Amp Head:

This was a very surprising amp head. It has the signature EQ of any high-end GK head in a small package. Don't let the size fool you, it is a powerful amplifier. I have tried it through many types of speakers and basses, in many musical situations, and it can play ball with the big boys. It has all the major features I need. Love the portability. Pick one up.

(3 of 3 customers found this review helpful)

 
5.0

Excellent little amp

By Chris

from Wake Forest NC

Comments about Gallien-Krueger MB500 500W Ultra Light Bass Amp Head:

I LOVE this amp. It is lightweight, really small and best of all it ROCKS. I know sometimes GK get some not so good reviews on some of their stuff but I really really love the sound of their amps. I play through 1x15 and 4x10 GK cabs - budget priced ones - but I get a fantastic sound with power to spare..... Couldn't be happier with this product. When the amp arrived, it had some scratches on it and I called to inform GC who were great about it and offered a replacement no questions asked. None of my local GC stores had stock and I did not want to have to wait for a replacement through the mail so I suggested them giving me a discount to keep the scratched one. Again - no questions asked they were happy to accomodate me....... HAPPY HAPPY HAPPY.....

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