Conn Imp. Precision 2 vs Yamaha SL-YEO-S

Both mouthpieces share similar core dimensions — the differences are in the details.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
The width of the rim surface that contacts the lips. Wider rims improve endurance; narrower rims improve flexibility.
Mouthpiece A
    Conn Imp. Precision 2
    • Trombone
    Lead
    Rim width
    Best suited for
    📋Solo; high register
    🎶Big bright tone; excellent solo
    vs
    Mouthpiece B
      Yamaha SL-YEO-S
      • Trombone
      Rim width
      Best suited for
      🎻Orchestral playing — large cup for full, dark tone
      📣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 Conn Imp. Precision 2 details Yamaha SL-YEO-S details Conn Imp. Precision 2 equivalents Yamaha SL-YEO-S equivalents