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Gallien-Krueger MB115 1x15 200W Ultralight Bass Combo Amp  

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    Gallien-Krueger

    Ultralight, super-portable power on the go.

    The MB115 bass combo amp from Gallien-Krueger delivers a big sound from an ultralight, compact package. At 35 pounds and 200W, the bass amplifier has the power to be heard in any situation. The GK MB115 also features a 15" speaker, active 4-band EQ with contour, and defeatable limiter.

    Features

    • 200W digital power amp
    • 15" Speaker
    • Active 4-band EQ with contour
    • 1/8" aux input
    • Headphone jack
    • Defeatable limiter

    Order now and get your GK tone to go.

     
    Customer Reviews
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    Review Snapshot®

    by PowerReviews
    Gallien-KruegerMB115 1x15 200W Ultralight Bass Combo Amp
     
    4.8

    (based on 75 reviews)

    Ratings Distribution

    • 5 Stars

       

      (67)

    • 4 Stars

       

      (4)

    • 3 Stars

       

      (1)

    • 2 Stars

       

      (2)

    • 1 Stars

       

      (1)

    82%

    of respondents would recommend this to a friend.

    Pros

    • Excellent sound (9)
    • Portable (9)
    • Easy to use (7)
    • Good power output (7)
    • Warm / comfy (7)

    Cons

      Best Uses

      • Performances (8)
      • Home studio (6)
      • Outdoor events / games (4)
      • Professional recording (3)
        • Reviewer Profile:
        • Experienced (7), Professional musician (4)

      Most Liked Positive Review

       

      GK MB115 Bas Amp

      It's not built to be the loudest amp in the world, but bass amps need to be a certain wattage to get their message across with two other screaming guitars nearby. This amp immediately...Read complete review

      It's not built to be the loudest amp in the world, but bass amps need to be a certain wattage to get their message across with two other screaming guitars nearby. This amp immediately made me sound like a better bassist, and gave me that 1-2 more db I needed from my old 100-watt amp to add my weight to the mix. I should also add I listened to some 10x2 and 12x2 amps trying to decide if I needed more, smaller speakers (like the Rumble 350, which caught my eye). My take is that they are louder and sometimes more punchy, but for low-end power and true bass "rumble," a single 15 still sounded better to me. If you're looking for a good amp for your 4-5 piece, and you're playing bars and clubs, this is a great purchase.
      Compared to some other amps I have used, it is much more simple to operate, but the truth is it actually sounds pretty good right out of the box - - like a bass amp should! I needed an amp with just a few more db to keep up with the guitars in my blues/classic rock 4-piece and this amp fit the bill nicely. The built-in horn does add great high-end when needed, and my experience is that the horn itself is pretty quiet, but if there is line noise from the ac it will accentuate that. Kind of annoying, but when you ground-lift or manage to find clean power it sounds great! (Don't forget to make sure your bass is grounded effectively internally as many cheaper basses, like mine, are not). The compressor works well, the contour circuit is interesting but not the sound I was going for. All in all, good low-end, a nice mid-high range with the horn on, decent eq ability, and that great GK bass "sound" right out of the box. The fact it weighs less than my dog is also amazing!
      The only quality issue I have encountered is that the grill does rattle at higher volume sometimes, especially when the limiter is off. Otherwise, this thing seems very well made. I've only played two gigs, but it was an immediate improvement over my old system, and feels pretty rugged. Nothing sticking out to break off, solid sides, decent handle. The handle, which is located on the top of the amp, is pretty stiff to pull-up (on purpose) but the amp is light enough it seems to me it should not be a high-risk break-point.
      Good bang for the buck for small-medium rooms. Good line-out for the P.A. board for larger rooms. For the money, I haven't found a bass amp in this price range in stores that can beat it.

      VS

      Most Liked Negative Review

       

      It's a dancin' machine!

      I've owned the GK 15 bass amp for 2 years now practicing with a band once a week and playing out 1 or 2 times a month. It has it's positives and negatives. Read complete review

      I've owned the GK 15 bass amp for 2 years now practicing with a band once a week and playing out 1 or 2 times a month. It has it's positives and negatives.

      This amp has great low end and good tone and is loud enough to be heard over most drummers. The 15 sounds great, the tweeter is just ok. The controls are easy to use and the passive sound is good without feedback when the gain is on 9 o'clock. The only major feature it has is a line out which is good for getting in the mix at medium and large venues.

      The amp is very light, however that is it's major drawback. The amp bounces around on the ground on surfaces that are not completely level like my friend's basement and a few venues I've played at.

      I play in a loud rock band called People Grinding Axes and yesterday was my last show with this amp because I am sick of the bouncing around on stage. I swapped it for a Fender Rumble 350 2x10 that doesn't sound quite as good as the GK, but it doesn't bounce around and still has the line out. I should also note that the metal grill cracked after about 6 months so I decided to replace it with a plastic screen from a screen door and that seemed to work ok.

      The concept is great and it looks like GK decided to put a cloth grill on the new models which will avoid cracking. I also suggest that they add 4 2 pound weights to each corner of the amp to help keep it steady. It would still be under 50 pounds and keep the amp steady on the floor. If you play at quieter volumes, the bouncing may not be an issue.

      When GK fixes the grill and makes it more stable it will be 5 stars.

      Reviewed by 75 customers

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      (2 of 3 customers found this review helpful)

       
      5.0

      HOLY GK !!!

      By big mike

      from missouri

      About Me Experienced

      Pros

      • Light weight
      • Wicked Sound

      Cons

      • Absolutely Nothing

      Best Uses

        Comments about Gallien-Krueger MB115 1x15 200W Ultralight Bass Combo Amp:

        This amp is absolutley awesome! Nothing else I have ever played on compares! I play at church primarily and this thing is great sounding with power to spare!!! I use it paired with a Fender p-bass special deluxe and am more than happy with my purchase! WOW!!!

        Comment on this review

         
        3.0

        It's a dancin' machine!

        By Watchthebassampjumparound!

        from Lansing, MI

        About Me Experienced

        Pros

        • Excellent Sound
        • Portable

        Cons

          Best Uses

          • Performances

          Comments about Gallien-Krueger MB115 1x15 200W Ultralight Bass Combo Amp:

          I've owned the GK 15 bass amp for 2 years now practicing with a band once a week and playing out 1 or 2 times a month. It has it's positives and negatives.

          This amp has great low end and good tone and is loud enough to be heard over most drummers. The 15 sounds great, the tweeter is just ok. The controls are easy to use and the passive sound is good without feedback when the gain is on 9 o'clock. The only major feature it has is a line out which is good for getting in the mix at medium and large venues.

          The amp is very light, however that is it's major drawback. The amp bounces around on the ground on surfaces that are not completely level like my friend's basement and a few venues I've played at.

          I play in a loud rock band called People Grinding Axes and yesterday was my last show with this amp because I am sick of the bouncing around on stage. I swapped it for a Fender Rumble 350 2x10 that doesn't sound quite as good as the GK, but it doesn't bounce around and still has the line out. I should also note that the metal grill cracked after about 6 months so I decided to replace it with a plastic screen from a screen door and that seemed to work ok.

          The concept is great and it looks like GK decided to put a cloth grill on the new models which will avoid cracking. I also suggest that they add 4 2 pound weights to each corner of the amp to help keep it steady. It would still be under 50 pounds and keep the amp steady on the floor. If you play at quieter volumes, the bouncing may not be an issue.

          When GK fixes the grill and makes it more stable it will be 5 stars.

          Comment on this review

          (1 of 1 customers found this review helpful)

           
          5.0

          Clear tone

          By jbean

          from Dartmouth, MA

          About Me Professional Musician

          Ask me a question

          Verified Buyer

          Pros

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

          Cons

            Best Uses

            • Home Studio
            • Performances
            • School Performances

            Comments about Gallien-Krueger MB115 1x15 200W Ultralight Bass Combo Amp:

            has plenty of power for such a light weight amp

            Comment on this review

            (1 of 2 customers found this review helpful)

             
            1.0

            It broke too fast, hard to return it.

            By Luis

            from Calexico,Ca

            About Me Experienced

            Pros

            • Excellentg Sound
            • Excellent Sound
            • Portable

            Cons

            • It Smoke After Two Months

            Best Uses

            • Performances

            Comments about Gallien-Krueger MB115 1x15 200W Ultralight Bass Combo Amp:

            I decided to get this amp for all the good reviews but after all it smoked , it broke and I need an amp now for a performace in a local festival. I tried to get the RMA but I'll be charged for the all the shipment maybe it will be expensive to get a fix. I'm very disappointed.

            Comment on this review

             
            5.0

            great all purpose amp

            By doug

            from couquitt georgia

            About Me Professional Musician

            Verified Buyer

            Pros

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

            Cons

              Best Uses

              • Events
              • Home Studio
              • Performances
              • Professional Recording

              Comments about Gallien-Krueger MB115 1x15 200W Ultralight Bass Combo Amp:

              i have been playing bass for over 45 years all over the south. my back is about worn out from ligging around heavey bass amps to do the job. my gk has been a blessing for me. i can reherse and play in church as wellas home or studio or even do live eventswith tis little amp. i play a fendet delux jass 5 string and the amp holds up just fine! with the line out i can go thru the p. a. and be as loud as they want. doug

              Comment on this review

               
              5.0

              Great Amp!!

              By DTeague

              from Scottsboro, AL

              About Me Experienced

              Pros

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

              Cons

              • None

              Best Uses

              • Church
              • Events
              • Performances

              Comments about Gallien-Krueger MB115 1x15 200W Ultralight Bass Combo Amp:

              Was interested in purchasing another manufacturer when introduced to the GK brand by a sales person. Very surprised by great sound of amp. Even more surprised when I picked it up!

              Comment on this review

               
              5.0

              Great amp

              By 1/4 inch steel

              from Hershey Pa

              About Me Professional Musician

              Verified Buyer

              Pros

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

              Cons

                Best Uses

                • Home Studio
                • Performances
                • Professional Recording

                Comments about Gallien-Krueger MB115 1x15 200W Ultralight Bass Combo Amp:

                Was looking for an in between amp and got a lot more than I expected. Great tone, can produce a warm fat rock tone, to a funky slap and pop tone.
                Also works great for acoustic intruments as well.

                Comment on this review

                 
                5.0

                Great purchase

                By RockOn!

                from Midwest

                About Me Experienced

                Verified Buyer

                Pros

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

                Cons

                  Best Uses

                  • Events
                  • Home Studio
                  • Performances

                  Comments about Gallien-Krueger MB115 1x15 200W Ultralight Bass Combo Amp:

                  This amp makes even a cheap Squire P-bass sound awesome! Lots of bottom end. The horn gives the instrument lear highs. Light and portable but sounds huge. Wish I had this years ago when we were carrying hundreds of pounds of amps to get this sound!

                  Comment on this review

                  (1 of 1 customers found this review helpful)

                   
                  5.0

                  More than Worth the Price

                  By Tuna27

                  from Connecticut

                  About Me Experienced

                  Ask me a question

                  Pros

                  • Incredibly Lightweight
                  • Well Voiced and Potent

                  Cons

                  • Grill Buzzes
                  • No Extension Speaker

                  Best Uses

                  • Small to medium venues

                  Comments about Gallien-Krueger MB115 1x15 200W Ultralight Bass Combo Amp:

                  This is a great amp and well worth the money. An outstanding value. It has deep and articulate voicing, and actually sounds better as it is turned up. The GK sound is a just a little bit "solid state" to my ears, but very good. I preamp it with a tube (an old TubeWorks BlueTube)to add a little smooth grit and warm compression. But that's not needed at higher volumes. The grill will buzz a bit when cranked. A provision for an extension speaker and tuner-out would be nice, but it is an exceptional little amp as is,and awesome for practice and smaller venues. You will be heard for sure, and everyone will think you've got something a lot bigger. At this weight and price you won't hestitate to take it anywhere.

                  Comment on this review

                  (0 of 1 customers found this review helpful)

                   
                  4.0

                  worth the money

                  By mikeslappindabass

                  from Central Coast California

                  About Me Experienced

                  Ask me a question

                  Verified Buyer

                  Pros

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

                  Cons

                    Best Uses

                    • Home Studio
                    • Small gigs

                    Comments about Gallien-Krueger MB115 1x15 200W Ultralight Bass Combo Amp:

                    The nut that holds the 1/4 passive imput in place is barely too small for the 1/4 cable to fit. Luckily I could just switch it with the 1/4 active imput nut because I don't use it. I would think they would plug a bass in to make sure the amp works correctly before they sent it out though, they must not have.

                    Comment on this review

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