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Bach 7 vs Bach 7C

the Bach 7 features a deeper cup.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
    Bach 7
    • Trombone
    Cup diameter24.75 mm / 0.9744 in
    Best suited for
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Bach 7C
      • Trombone
      Cup diameter24.75 mm / 0.9744 in
      Best suited for
      📣High-volume projection — open throat for power

      Cup Diameter

      Both mouthpieces have virtually identical cup diameters at 24.75 mm / 0.9744 in.

      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 7 details Bach 7C details Bach 7 equivalents Bach 7C equivalents

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      Compare Bach 7C with others

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