Let me introduce you to the newest F tuba on the market, the first production F tuba ever manufactured in the United States of America. The instrument has a 16″ diameter bell, a graduated valve bore, and stands 31″ tall. These photos are of prototype #1, which is in my shop, and available for play-testing now. This particular instrument has a bore starting at .684″, tapering up to a .730″ internally-vented 5th rotor. Kanstul is still making developmental changes to the instrument, so there will be some subtle changes in specifications as it develops, although the overall setup will remain the same. I am delighted with this tuba, as it is small-enough to be a wonderful solo- and chamber ensemble instrument, but is just large-enough to speak with authority and fill the hall with clean, clear sound. This instrument has inspired me to start playing F tuba again, as it is a pleasure, not a struggle to play it and play it well. The infamous F tuba “low C range” is as easy-to-play as a CC tuba. This tuba is a leap forward in F tuba design, and you’ll know it as soon as you play one. The prototype may be available for sale, too. Please call or e-mail for further information about getting your new Kanstul F tuba. Available with Cronkhite bag or MTS hard case.