Home › Baritone / Euphonium › Bruno Tilz 304- B 1 vs Yamaha AH-38D4

Bruno Tilz 304- B 1 vs Yamaha AH-38D4

The Bruno Tilz 304- B 1 has a wider cup diameter, the Yamaha AH-38D4 features a deeper cup, the Yamaha AH-38D4 has a larger throat opening.

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
    Bruno Tilz 304- B 1
    • Baritone / Euphonium
    Catalog
    Cup diameter22.00 mm / 0.8661 in
    Best suited for
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Yamaha AH-38D4
      • Baritone / Euphonium
      Cup diameter18.90 mm / 0.7441 in
      Best suited for
      🎻Orchestral playing — large cup for full, dark tone
      📣High-volume projection — open throat for power

      Cup Diameter

      The Bruno Tilz 304- B 1 has a cup diameter of 22.00 mm / 0.8661 in compared to 18.90 mm / 0.7441 in on the Yamaha AH-38D4 — a difference of 3.10 mm / 0.1220 in. A wider cup generally produces a fuller, darker tone but requires more air support.

      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 Bruno Tilz 304- B 1 details Yamaha AH-38D4 details Bruno Tilz 304- B 1 equivalents Yamaha AH-38D4 equivalents

      Compare Bruno Tilz 304- B 1 with others

      Compare Yamaha AH-38D4 with others

      Popular Baritone / Euphonium comparisons

      Bruno Tilz vs Yamaha

      Browse by specification