GK MB500 vs GK MBFusion

Discussion in 'Amps and Cabs [BG]' started by ocoaibass, Mar 25, 2014.

  1. ocoaibass


    Jan 9, 2010
    I recently bought the 500 at my local shoppe, on a whim. Then I did some research & had them order the Fusion so I could compare. I'm interested in the tube pre & the contour/presence freq switches.

    It will be a week before it arrives. Anyone care to share their opinions? I've seen several threads that date back to the days of the Fusion's release, but most of that is hype. Hands on experience, please. Although general expertise is always appreciated!
  2. DerTeufel


    Nov 11, 2011
    Wildomar, CA
    I have an MB Fusion 500. The tubes definitely impart an organic quality to the tone, even when ran "clean". Run the gain up a bit and it gets pretty dirty, but in a usable way. I've tried the presence switch..not my cup of tea, as it gets too clanky. I never touch the contour. I leave it off. The only switch that I engage is the limiter. It's plenty loud.
  3. ocoaibass


    Jan 9, 2010
    The new amp has arrived at the shop & I'll be going by to check it out tomorrow. Anyone care to weigh in before I spend more money?
  4. happyg


    Sep 17, 2011
    I had the fusion twice.....the mb500 once. I like the mb fusion 500 better. I think it has a better harmonic content. Sounds a little smoother and not as harsh as the mb 500. But, it still has that GK tone in spades. Remember. ...thats just my opinion. Let your ears be the judge.
  5. JxBass

    JxBass Supporting Member

    Aug 5, 2008
    I've owned both and prefer the Fusion. I agree with the organic and harmonic comments. It has more character than the MB500.
  6. mam1862

    mam1862 Supporting Member

    Nov 10, 2008
    Richfield, Ohio
    They are both good amps. To me the fusion is going to give you more versatility. You have a wider tonal span with the fusion.
  7. Jerry Ziarko

    Jerry Ziarko Supporting Member

    Feb 23, 2003
    Rochester, NY
    I've owned both as well. To me, they are two flavors of good. They sound slightly different, but more like siblings than cousins.
  8. floydman


    Sep 27, 2002
    southeast CT
    I have an mb fusion 500. great clean sound, without sounding sterile. I'm hooked. but I am upgrading to the 800 fusion.
  9. ocoaibass


    Jan 9, 2010
    I have to say that everyone that has commented is right on the money. I a/b'ed them in the store & really dig the extra mojo of the tube preamp. I even did a blind comparison where my buddy switched them on me & asked me which I liked better. The Fusion won every time. Thanks for the feedback!!! I'm super pleased.
  10. 12many


    Jan 11, 2014
    I'm lovin' my MBfusion. I had hoped class D and a nice lightweight cab was going to cover what I do. I had been lugging a combo on a small dolly. What a hassle for such a long stretch. This amp dialed out some weak spots on my Yamaha bass. Using just the Neo 112 II I can bounce concrete. Should I decide to be immature I can "drowned out the freakin' drummer" anytime with it. Beautiful range of options and the warm deep motown sound I wanted. Kinda like the deep option switch - just don't like where they put it. GK forever for me.

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