Bach 12E vs Yamaha SL-48S

The Yamaha SL-48S has a wider cup diameter, the Yamaha SL-48S features a deeper cup, the Yamaha SL-48S has a larger throat opening.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
Base metal or construction (e.g. brass, stainless steel, plastic). Influences weight, response, and tone color.
Mouthpiece A
    Bach 12E
    • Trombone
    Material
    Best suited for
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Yamaha SL-48S
      • Trombone
      Material
      Best suited for
      📣High-volume projection — open throat for power

      Which is better?

      Neither mouthpiece clearly dominates the other — the right choice depends on your embouchure, playing style, and the sound you're after. Try both if possible.

      Open in interactive tool + Add third mouthpiece Bach 12E details Yamaha SL-48S details Bach 12E equivalents Yamaha SL-48S equivalents