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Gallien-Krueger MB500 500W Ultra Light Bass Amp Head  

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SKU 
#423659000000000
Top Rated

Overview

  • 500W @ 4 ohms, 350W @ 8 ohms
  • Digital power amp
  • 4-band active EQ with contour switch
Description & Specs
  • MSRP:
    $714.00
  • Your Savings:
    - $215.00
  • Your Price:
    $49900
1 Used From $464.07

In Stock & Ready To Ship

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Also Consider
Also consider
      Gallien-Krueger

      500W of thunder that easily fit in your gig bag.

      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

      Pure GK power and tone made fully portable. Order now!

       

      MB500 500W Ultra Light Bass Amp Head Specifications:

      • 4 lb.
      • Width: 10-3/4"
      • Depth: 8-1/2"
      • Height: 1-3/4"
      Customer Reviews
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      Review Snapshot®

      by PowerReviews
      Gallien-KruegerMB500 500W Ultra Light Bass Amp Head
       
      4.8

      (based on 26 reviews)

      Ratings Distribution

      • 5 Stars

         

        (22)

      • 4 Stars

         

        (3)

      • 3 Stars

         

        (1)

      • 2 Stars

         

        (0)

      • 1 Stars

         

        (0)

      100%

      of respondents would recommend this to a friend.

      Pros

      • Excellent sound (8)
      • Portable (8)
      • Easy to use (7)
      • Good power output (7)
      • Warm / comfy (6)

      Cons

        Best Uses

        • Performances (9)
        • Outdoor events / games (6)
          • Reviewer Profile:
          • Experienced (5), Professional musician (5)

        Most Liked Positive Review

         

        Great AMP,Lots of Power, Fits in my Upright Bass Gig-Bag Pocket

        This Amp is a great value.
        I would recommend this amp to Upright and Electric Bass Players. I have used this Amp since it was released and have had ZERO problems with...Read complete review

        This Amp is a great value.
        I would recommend this amp to Upright and Electric Bass Players. I have used this Amp since it was released and have had ZERO problems with it. I have lent it to other musicians who have opened up and or headlined shows with me (about a 20 so far). A typical after show comment..... "That little amp really packs a punch".....I live in NYC. I play Small to medium clubs as well as big stages in the summer,weddings and tours. The direct out is all you need for the extra large out-door stages. If you need to slim-down the weight of your touring/gigging rig. Have to take subways and or crammed vehicles to gigs. Or if your an old hand with a sore back....This is your amp. I would highly suggest this little fella.... The days are numbered for the giant stack rigs. They are out-dated!

        VS

        Most Liked Negative Review

         

        Too pricey for the performance

        These days, it seems like you pay premiums for 1) brand name, 2) light weight, or 3) exceptional performance. For me (everybody has their own opinion) this amp scores on...Read complete review

        These days, it seems like you pay premiums for 1) brand name, 2) light weight, or 3) exceptional performance. For me (everybody has their own opinion) this amp scores on the first 2...not so much on the third. But hey, they say 2 outa 3 ain't bad.
        The compressor was OK...just not variable and a little too squashed for me. With the 4-band EQ, I couldn't get a tight, low-end punch without getting boomy, and the contour didn't seem to help at all. I returned it and continue to look at alternatives.
        I play a 5-string Carvin fretted bass, with a humbucker at the bridge and single coil in the middle. Was a little less boomy when I split the humbucker. I also tried my Carvin 5-string fretless with J-bass set-up (2 singles) , and results were similar. Some may discount my review because of the brand, but I've always had great sound from my Carvin's with other amps.

        Reviewed by 26 customers

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        Displaying reviews 1-10

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        5.0

        The GK sound in 5lbs

        By Rico

        from Hales Corners, WI

        About Me Experienced

        Pros

        • Easy To Use
        • Excellent Sound
        • Portable

        Cons

          Best Uses

          • Events
          • Performances

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

          So far so good. The GK MB500 sounds great, but it took some experimenting to get the tone I wanted, and I had to read the manual.

          The first time I played it during practice, I played it through my practice speaker, an old single 15 cab. I was having a difficult time getting the tone I wanted with my Sting Ray. Lots of low-end, but there was no high end from my G string. I switched to my P-Bass, and things got better. Then I read the manual and tried some of the suggested settings. From there, I started playing around with different controls to get different tones.

          Last night I played live through my Avatar 15" bottom and it sounded it great! It pushed air, with little effort. I was able to get the GK growl along with a punched up low end for blues/rock at a small outdoor event.

          As I said, you need to experiment with the tone controls and start with some of the suggested settings in the manual.

          Here's the best thing about this amp. It fits in your gig-bag.

          Comment on this review

           
          5.0

          Absolutely amazing!

          By cjam001

          from Harvey, LA

          About Me Professional Musician

          Pros

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

          Cons

            Best Uses

            • Amateur Recording
            • Events
            • Home Studio
            • Performances
            • Professional Recording

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

            I bought this for my wife and she can pick it up with two fingers and carry it in her purse! It's just that light. The sound is incredible!

            Comment on this review

             
            5.0

            My new MB500

            By Fivestring99

            from The Republic Of Texas

            About Me Professional Musician

            Pros

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

            Cons

              Best Uses

              • Amateur Recording
              • Events
              • Home Studio
              • Performances
              • Professional Recording

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

              After over 45 years of playing bars and honky-tonks, parties, festivals, weddings, small venues as well as large, I've never had anything like this head. Under 5 pounds but the sound is HUGE! Tones are very versatile. I'm not really crazy about the unmarked controls but I'm getting used to them. I can fit it, the cables, and tuner in a little canvas tote bag my wife padded for me. One trip from the truck and I'm set. This is actually my second MB500. The first one showed up last week with a non-functional boost switch. Christine and Gilberto at G-K were all over it and got me a replacement pronto. No question, no hassles, just fixed the issue. GREAT customer service! It's not my first G-K product by any means and I'm sure it won't be my last.

              Comment on this review

               
              5.0

              Pedal Steel Players answer to weight pro

              By L.M.

              from Augusta, Ga.

              About Me Professional Musician

              Pros

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

              Cons

                Best Uses

                • Events
                • Performances

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

                The best alternative LIGHT weight pedal steel amps on the market. The MB500 has enough power needed to cover any size performance . Works great with any size speaker cab. Lot's less expensive than a good steel amp. I have got two years of hard use on mine, and it has never let me down.

                Comment on this review

                 
                5.0

                Amazing

                By garnermike

                from Raleigh, NC

                About Me Professional Musician

                Ask me a question

                Verified Buyer

                Pros

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

                Cons

                  Best Uses

                  • Events
                  • Performances

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

                  Have owned many bass heads, at least 6 different brands. I was just amazed at the depth, warmth, crispness and bottom of this little G-K head. Used either with an Ampeg (15") and also a Carvin (18")cab, its tonal quality surpasses every other head I've used.

                  Comment on this review

                   
                  5.0

                  GK IS TO TRUST

                  By kikin

                  from Orlando FL

                  About Me Experienced

                  Verified Buyer

                  Pros

                    Cons

                    • None

                    Best Uses

                    • Performances

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

                    I'd used it with a baby bass in a salsa music gig and it was hard to believe that all that powerful sound came out from that little thing.

                    Comment on this review

                    (1 of 1 customers found this review helpful)

                     
                    5.0

                    A light and powerful little amplifier

                    By John

                    from Charleston, S.C.

                    About Me Experienced

                    Verified Buyer

                    Pros

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

                    Cons

                      Best Uses

                      • Events
                      • Performances

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

                      This is a very powerful and highly portable little amp. I use it for acoustic and electric upright, and it does well for both. So far, I am very pleased with it.

                      Comment on this review

                      (1 of 1 customers found this review helpful)

                       
                      5.0

                      BEAUTY!

                      By johnstauros

                      from Baltimore, MD

                      About Me Experienced

                      Ask me a question

                      Pros

                      • Excellent Sound
                      • Light Ultra
                      • Portable
                      • Powerful

                      Cons

                        Best Uses

                        • Performances

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

                        Only had it a few days (hope it holds up)... great deal from MF (Chris M.)!

                        I have several other amps (high-end) and this has the most tonal versatility of them all!

                        I like simple- and the (included) foot pedal controls the 'Boost'feature- which is all I need... goes nicely with my Aguilar DB410 cab (700w RMS)

                        Comment on this review

                        (5 of 5 customers found this review helpful)

                         
                        4.0

                        Impressive.

                        By ChrisBass

                        from Austin, TX

                        About Me Experienced

                        Verified Buyer

                        Pros

                          Cons

                            Best Uses

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

                              I recently purchased this amp as a backup to my 70's SVT after much research. The band and I were pleasantly surprised when I plugged it in... This thing can get very loud while keeping the lows tight. The tone isn't quite the SVT (obviously), but it's a close second. I would recommend this amp for anyone who needs a back-up or if you're playing small to medium sized clubs. Overall, I am very pleased with my investment!

                              Comment on this review

                              (3 of 3 customers found this review helpful)

                               
                              5.0

                              Awesome Bass Amp

                              By David

                              from Ocala, FL

                              About Me Professional Musician

                              Ask me a question

                              Verified Reviewer

                              Pros

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

                              Cons

                                Best Uses

                                • Performances

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

                                I just purchased the GK MB500 and am blown away by the clarity and punch out of this little unit. I have been playing through a Peavey Tour 450 and have never been able to dial in a desirable sound with my Pedulla fretless even with the 10 band EQ but as soon as I plugged in this unit I could immediately hear the difference.
                                The 4 band EQ is amazing and this thing really packs a wollup! I would recommend this amp to any serious musician.

                                Comment on this review

                                Displaying reviews 1-10

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