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MF MD HG Exclusives 09-19-14

Ashdown MiBass-550 Bass Amp Head  

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Product #H76647

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  • Ashdown

    It fits in the pocket of a gig bag. Yet it’s big enough to fill a serious venue.

    The mighty MiBass 550 packs 550W of Class D power and a plethora of pro features in a stylish, compact bass amp head measuring just 8.3 x 2.6 x 6.3 inches – and that includes an internal power supply.

    At the front you’ll find switchable Active/Passive instrument inputs, precision interactive tone shaping, Deep and Shape switches for instant access to killer sounds, an EQ In/Out switch, an output level control and, of course, a trademark Ashdown VU meter. And what could be neater than a front panel-mounted line input with level control, so you can hook up an MP3 player for practicing.

    The pro-theme continues around the back, where combination Jack/Speakon speaker outputs share panel space with a Pre/Post switchable balanced DI output for direct connection to a PA system or recording console, an FX Send/Return for adding in your favourite effects and a headphone jack for silent rehearsal.

    Features
    • 550W
    • Class D powered bass head
    • 7-band Combination Active/graphic EQ
    • Deep & Shape switches
    • Active/Passive input pad

    So much sound, so little weight. Order today.

     
    Customer Reviews
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    Review Snapshot®

    by PowerReviews
    AshdownMiBass-550 Bass Amp Head
     
    5.0

    (based on 2 reviews)

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    Reviewed by 2 customers

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    5.0

    Best mini bass amp

    By J.S.

    from Pompton Plains, NJ

    About Me Professional Musician

    Pros

    • Easy To Use
    • Excellent Sound
    • Pinpoint Tone Controls
    • Portable

    Cons

      Best Uses

      • Events
      • Performances
      • Small venues

      Comments about Ashdown MiBass-550 Bass Amp Head:

      There may be slightly more powerful bass amps in this size/weight class, but the Ashdown MiBass-550 meets my first prerequisite: Semi-Parametric tone controls to allow "dialing-out" speaker cabinet and/or room resonances. I'm also grateful not having any tubes in my signal path, as pure solid-state always gives me more clean punch without the mud. (My bass sounds plenty warm to begin with.) ...In my further opinion, Pre-EQ is the only useable DI option and the rest of this amp's features are just icing on the cake... Finally, I'm generally not a fan of how "Class D" power seems to be rated, as good old transformer-powered bipolar transistors always seem to win my power tests, but nothing beats this highly portable mini amp for those smaller gigs as I age, and the MiBass-550's B&O ICEpower module does a very nice job. Thanks Ashdown and Musician's Friend!

      Comment on this review

       
      5.0

      Very flexible bass amp

      By New Ashdown user

      from Chicago, IL

      About Me Experienced

      Pros

      • Back Panel Jacks
      • Broad Tonal Range
      • Excellent Sound
      • Line In With Level
      • Portable
      • Powerful
      • V U Meter

      Cons

      • Location Of Power Cord
      • No Dedicated Mute Switch
      • Takes Time To Master E Q

      Best Uses

      • Events
      • Home Studio
      • Performances
      • Rehearsals

      Comments about Ashdown MiBass-550 Bass Amp Head:

      I've owned for about 18 mos. Lots of power in small package. I use w/single 8-ohm 1x10 @ home, and w/2x10 4-ohm cab out (small-midsize churches, typically). On front is the VU meter (to set gain level, which can vary greatly depending on the bass; i.e. pickups/pre-amp). Set this first w/output all the way down. This is why a dedicated Mute would be nice. There's an Active switch & a Deep switch (Deep is too much for my setup but should be ok if using 15"). Seemingly infinite tonal variations by selecting Shape, EQ, Deep, or by combining them as desired. The eq controls are VERY sensitive (Bass/Lo-Mid/Hi-Mid,Treble,w/3 Frequency controls). This is why I wanted the unit, but also why I wasn't able to quickly dial in the sound I wanted. Suggest you spend time learning how all of the features interact before you do a gig, if poss. Also on front are the single 1/4" instrument jack, and a 1/8" Line In for a CD/MP3 etc., with a separate Level control (very handy). On the back are 1/4" headphone, FX send & rtn, and Line out jacks, XLR DI out, pre/post switch, and dual 1/4"/Speakon speaker outputs. I've not used the FX, Line Out or DI out, but seems this is all you'd need to connect to a mixer or effects loop. Plugging into the headphone jack does mute the speaker output. The fan runs continuously while the unit is on, & seemed loud for its size, but the amp enclosure seemed to stay cool during some extended use. The power switch is located in the back UNDER the power cord, which is annoying to me. This unit is now discontinued, but IMO is one of the most flexible amps I've used in over 40 yrs of buying bass amps, and comes in a very compact, lightweight and sleek looking package. *Caution - not for anyone who wants to find their tone instantly :)

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