Bach Commercial Series Mouthpiece 7S

7S - Cup Depth Shallow, Approx. Cup Dia. 16.00mm, Rim Shape Medium Wide. Slightly flatter rim face than standard Bach 7C. Medium diameter mouthpiece with a shallow cup. Special backbore helps facilitate the high register.

The Commercial series was designed specifically for lead trumpet players looking for greater depth of sound and volume when playing in higher registers.

The Commercial series starts with a Classic cup, but uses a 27 throat, a 24 backbore and increases the outside mass. Commercial mouthpieces are only available in Shallow and Medium V shaped cups.