Posted by Kenny Jay on January 10, 2001 at 22:40:27:
In Reply to: Re: Re: Mouthpieces posted by D. Sedens on January 10, 2001 at 17:59:20:
A Schilke Helleberg has a cup dia. of 1.290" deep cup
An old style Conn Helleberg " " " " " 1.260" deep cup
a new style Conn Helleberg " " " " " 1.300" deeper cup
a Conn Helleberg 7B " " " " " " " " " 1.280" a little shallower than first two
The Helleberg 7B has same cup dia. and cup depth as a Bach 18. It's just shaped somewhat differently.
The Miraphone C7 is very similar to the Schilke 69C4. They both have a cup dia. of 1.300. but are about as shallow as they make. They are good only for solo ar quintet work for a smallish Eb or F horn.
Hope this helps, or perhaps it will just confuse you more.