Butler C12 carbon fiber bass trombone

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This amazing instrument has all the sound qualities you would expect from a high end bass trombone but only weighs 4 lbs. Almost all of the weight is centered over the shoulder to allow for stress free playing.

Carbon fiber bell, tuning slide, outer hand slide, F slide and Gb slide. Total weight of the instrument is 4lbs.

Double independent rotary valves with bearings for very smooth operation. From Instrument Innovations

Curved Williams style hand brace for more comfort

Multiple leadpipe options. Our multi threaded design takes both course and fine threads. (Shires or Edwards)

Ultra lightweight hand slide. The outer CF slide weighs only 80 grams.

Butler Speedyflo © water key has a very large opening to allow for quick release of moisture. It does not change the flow of air through the tube as there is no “dimple” on the inside of the tube. It uses an O ring to seal the opening and has a curved shaped plunger that matches the inside wall of the tube. In addition it uses a compression spring for much longer spring life.

Threaded aluminum bell rings creating a two piece modular CF bell for ease of travel.
High luster or matte finish on CF parts.

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1 Review

  • 5
    weight & response

    Posted by Louis on 19th Jan 2021

    This trombone is much lighter in weight then my Benge bass trombone I've been playing on since the 90's. The sound is great and the horn is very responsive. I feel this will extend my ability to continue playing since I'm in the really twilight of my time.

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