Lots of folks don't like the flat, sharp rim of the Conn Helleberg, though there are those who like the mouthpieces just because of that rim. But most models of Helleberg design don't have the same rim as the Conn. The G&W has a flat rim, but it is more rounded on the inside edge. The Parantucci mouthpieces seem to be more round than flat, and so on.mattwatts wrote:The thing that I particularly didn't like on the one I tried was the rim, but now I realise they can be different and I will look into these G&Ws more closely.
Scientifically speaking, what is the difference in effect of funnel versus cup? What difference does it make to sound, attack, range etc?
Generally, the deep funnel mouthpieces are supposed to emphasize the lower harmonics in the sound and de-emphasize the upper harmonics. I find this to be the case, but not necessarily desireable for every situation. I find myself using shallower mouthpieces than I used to, but still with a funnel concept of a smooth transition into the throat. I find the difference more obvious on euphonium. On my old Besson, a cup-shaped mouthpiece like a Bach 1-1/2 G produces more of a trombone-like timbre than the funnel-shaped Steven Mead mouthpieces made by Wick. The latter produce a much rounder tone with less edge.
Rick "who sometimes likes a little edge on tuba sound, particularly on a big tuba" Denney
