Bach Trombone Mouthpiece 6 1/2AM, Silver-Plated Finish (for Small Bore)

This is a popular choice among professionals and beginners worldwide. It takes a poor instrument to the next level and makes a good one even better. It offers rich volume, excellent intonation, and a rich, consistent tone across the entire range. Its moderate resistance prevents fatigue. Based on the 6 1/2A model, this model features a deep F throat (6.53mm) and a #413 backbore for a rich resonance. Diameter: 25.4mm Cup depth: MD (slightly deep) Rim thickness: MW (medium). The rim is very rounded. BACH MP TROMBONE 6 1/2AM Based on the 6 1/2A model, this model features a deep F throat (6.53mm) and a #413 backbore for a rich resonance. Diameter: 25.4mm Cup depth: MD (slightly deep) Rim thickness: MW (medium). The rim is very rounded.