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Yamaha YFB-621 tweak: mouthpiece adapter

Posted: Sun Apr 04, 2010 3:32 pm
by Sam Gnagey
Several months ago I put a European to American shank adapter in my small Yamaha F that made a pretty big change(I think for the better) in the horn. If you have one of these horns but not the adapter you can experiment with using a larger shank mouthpiece on the horn than typical. The receiver on this model is the standard size, so the larger shank adapter/mouthpiece doesn't go in as far. This also brought the pitch down so I don't have to pull the main slide out quite as far. That, in itself, might cause a slight improvement.
I have several of these adapters that I'll sell to anyone interested. They used to be available at Dillon's, but I don't think they handle them anymore. BTW I'm not talking about the big Dillon AGR here. This is just a simple tapered tube that fits in the receiver of the instrument. I've also found these adapters very helpful in checking any horn to see if adjusting the receiver gap on a permanent basis is a good thing.
I'd be very interested to read anyone else's observations on this topic.

Re: Yamaha YFB-621 tweak

Posted: Tue Apr 06, 2010 1:48 pm
by tclements
can you send me one?

Re: Yamaha YFB-621 tweak: mouthpiece adapter

Posted: Tue Apr 06, 2010 6:33 pm
by Bob Kolada
Wouldn't a straight sousa bit do the same thing?

Re: Yamaha YFB-621 tweak: mouthpiece adapter

Posted: Wed Apr 07, 2010 8:28 am
by cjk
Bob Kolada wrote:Wouldn't a straight sousa bit do the same thing?
Is there such a thing as a straight sousa bit? The straightest sousaphone bit I've seen is made by Jupiter, but it's about 20 degrees off of being straight. However, I am far from being a sousaphone bit expert.

Re: Yamaha YFB-621 tweak: mouthpiece adapter

Posted: Thu Apr 08, 2010 10:19 am
by kegmcnabb
Sam Gnagey wrote:the larger shank adapter/mouthpiece doesn't go in as far. This also brought the pitch down so I don't have to pull the main slide out quite as far. That, in itself, might cause a slight improvement.
Would something like this work to bring down the pitch of my ybb-103? The only thing I don't love about that little tuba is that I have to pull the main slide nearly all the way out. A souzy bit doesn't fit.

If this would fit, would I be required to then use a new mouthpiece? I wasn't really looking to change. I just thought this might help lower the pitch on my little horn.

Thanks,

Re: Yamaha YFB-621 tweak: mouthpiece adapter

Posted: Thu Apr 08, 2010 11:01 am
by Sam Gnagey
kegmcnabb wrote:
Sam Gnagey wrote:the larger shank adapter/mouthpiece doesn't go in as far. This also brought the pitch down so I don't have to pull the main slide out quite as far. That, in itself, might cause a slight improvement.
Would something like this work to bring down the pitch of my ybb-103? The only thing I don't love about that little tuba is that I have to pull the main slide nearly all the way out. A souzy bit doesn't fit.

If this would fit, would I be required to then use a new mouthpiece? I wasn't really looking to change. I just thought this might help lower the pitch on my little horn.

Thanks,
Yes, it would bring the pitch down. For the 103 you might try a Conn sousaphone bit which would bring it down even farther.

Re: Yamaha YFB-621 tweak: mouthpiece adapter

Posted: Thu Apr 08, 2010 11:04 am
by pierso20
cjk wrote:
Bob Kolada wrote:Wouldn't a straight sousa bit do the same thing?
Is there such a thing as a straight sousa bit? The straightest sousaphone bit I've seen is made by Jupiter, but it's about 20 degrees off of being straight. However, I am far from being a sousaphone bit expert.
There are straight sousa bits, for sure. The ones that go in the mpc before the "bent" one.