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Bach 1½C vs Conn Imp. Precision 2

The Bach 1½C has a wider cup diameter, the Conn Imp. Precision 2 features a deeper cup.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
The taper behind the throat leading to the shank. Affects projection and tone character.
Mouthpiece A
    Bach 1½C
    • Cornet
    Backbore—
    vs
    Mouthpiece B
      Conn Imp. Precision 2
      • Cornet
      General
      Backbore—
      Best suited for
      📋Players wanting volume; narrower rim than Model 1
      🎶Plenty of volume; big tone

      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 1½C details Conn Imp. Precision 2 details Bach 1½C equivalents Conn Imp. Precision 2 equivalents

      Compare Bach 1½C with others

      Compare Conn Imp. Precision 2 with others

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