I recently spoke with one of the guys at Junkdude music (they are the biggest selle of Morgan mouthpieces). He said that the jazz models have a different chamber (smaller). The classical models have more material taken from the inside of the mouthpiece (larger chamber). We didn't discuss facing lengths.
The smallest jazz model has an opening of 1.25, and the largest classical mpc is a 1.28. Go to junkdude.com and there is a chart of the tip openings of the mouthpieces.
I bought a 1.28 classical model a few months back, and I love it. Much rounder sound than my Clark Fobes jazz model, but I can still get enough volume, and it has a nice ringing sound (not too think and dead for jazz like a Viotto or similar piece).
The smallest jazz model has an opening of 1.25, and the largest classical mpc is a 1.28. Go to junkdude.com and there is a chart of the tip openings of the mouthpieces.
I bought a 1.28 classical model a few months back, and I love it. Much rounder sound than my Clark Fobes jazz model, but I can still get enough volume, and it has a nice ringing sound (not too think and dead for jazz like a Viotto or similar piece).
