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back-bores for the deeper cup Sellmansberger mouthpieces

Postby bloke » Thu Dec 22, 2016 1:23 pm

Some of you know that the "Symphony" back-bore ~and~ the "Orchestra Grand" back-bore will BOTH bolt up smoothly to EITHER of the Symphony or Orchestra Grand cups.

- The "Symphony" back-bore features a reverse taper in the throat area, which tends to offer low range facility a "boost" with many 4/4 and 5/4 size contrabass tubas.

- The "Orchestra Grand" back-bore features a conservative opening size, which offers some assistance in controlling/focusing the low range of many 6/4 size contrabass tubas.

:arrow: There IS, however, a THIRD back-bore taper (not ordered by many...therefore we don't produce as many of them) which bolts up to BOTH the Symphony and Orchestra Grand cups, and is (well...) just a "regular" (medium large throat, classic tapers) back-bore. It's simply called "X" (and yes - just as with the other two - is available in standard, P (in-between), and euro exterior shank sizes)...

...so if you neither desire a back-bore which does what the Symphony back-bore does, and nor do you desire a back-bore which does what the Orchestra Grand back-bore does, perhaps :?: you are one who might (simply) prefer a (though rarely sold) "regular" X back-bore.

I keep the "X" shanks in stock (here at blokeplace - Mid-South Music, Inc. in Tennessee)...If more are ordered (just fwiw...), we will produce more of them. :|
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Re: back-bores for the deeper cup Sellmansberger mouthpieces

Postby ValveSlide » Thu Dec 22, 2016 2:27 pm

Do you like the Laskey or Schilke H2/Gieb mouthpieces? Give the X a try on either the OG or Sym cups. I keep an X in my bag o'tricks.
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