Posted by Mark L. on January 05, 2003 at 14:37:04:
In Reply to: Doggy Miraphone? posted by Dan Schultz on January 05, 2003 at 12:55:33:
Mr. Shultz,  I have had similar problems with F horns.  It just sounds stuffy right?  Well I was using a regular helleburg on my horn.  I started using a Miraphone Rose Model mouthpiece and getting used to the horn and the problem became less notable.  
I have a recording of Jake playing The Vaughn Williams Tuba COncerto, and you can even tell a change of the sound on these notes (even though it is virtually noticable this guy was a hoss!).  I wouldn't sell the horn.  Just keep playing it.  If you still have a problem in a week or two then think about selling the horn.  I hope this helped.
Mark LeGault