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Conn Imp. Precision 4 vs Marcinkiewicz ETU1J. Self

the Conn Imp. Precision 4 features a deeper cup.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
The narrowest point at the bottom of the cup. Affects resistance, volume, and tone color.
Mouthpiece A
    Conn Imp. Precision 4
    • Tuba
    General
    Throat diameter—
    Best suited for
    📋Small Eb bass
    🎶Full rich tone
    vs
    Mouthpiece B
      Marcinkiewicz ETU1J. Self
      • Tuba
      Throat diameter8.03 mm / 0.3161 in
      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 Conn Imp. Precision 4 details Marcinkiewicz ETU1J. Self details Conn Imp. Precision 4 equivalents Marcinkiewicz ETU1J. Self equivalents

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