BACH Bass Trombone Artisan Finish Large A4415G2 Mouthpiece, (Arisan), 5G, Silver-Plated (for Bore),

The shape, sound, and response of the Artisan model are reminiscent of early back mouthpieces, modeled after those from the 1940s and 1950s, with specially selected throats and backbores. It has the same rim shape and diameter as the No. 5 for thin tubes and the same characteristics as the 4G, but the cup diameter is slightly smaller. ■Diameter: 25.5mm ■Cup depth: D (deep) ■Rim thickness: MW (medium), slightly flat rim.