Home › Trombone › Bach 6½AL (large shank) vs Conn Imp. Precision 5

Bach 6½AL (large shank) vs Conn Imp. Precision 5

the Conn Imp. Precision 5 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 6½AL (large shank)
    • Trombone
    Cup diameter25.40 mm / 1.0000 in
    Best suited for
    🎻Orchestral playing — large cup for full, dark tone
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Conn Imp. Precision 5
      • Trombone
      General
      Cup diameter—
      Best suited for
      📋Connstellation-equipped tenor trombone
      🎶Designed for Connstellation 24I/25I

      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 6½AL (large shank) details Conn Imp. Precision 5 details Bach 6½AL (large shank) equivalents Conn Imp. Precision 5 equivalents

      Compare Bach 6½AL (large shank) with others

      Compare Conn Imp. Precision 5 with others

      Popular Trombone comparisons

      Bach vs Conn

      Browse by specification