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Posted: Sun Sep 04, 2005 7:55 pm
by mckay
The old C4 is now called a TU23.
Neil McKay
(who mostly plays on a TU23)
Posted: Sun Sep 04, 2005 10:09 pm
by tubaman5150
The cup is more shallow and rim bigger and more rounded.
Posted: Sun Sep 04, 2005 11:48 pm
by MikeMason
i've wondered if the yamaha 67C4 might be a derivative...