Bruno Tilz 310-M 42 vs Denis Wick 3SL
The Bruno Tilz 310-M 42 has a wider cup diameter, the Bruno Tilz 310-M 42 has a larger throat opening.
Mouthpiece A
Bruno Tilz 310-M 42
• Tuba
CatalogCup diameter33.00 mm / 1.2992 in
Cup depth
Rim width—
Throat diameter8.90 mm / 0.3504 in
Backbore—
Finish—
Material—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Denis Wick 3SL
• Tuba
Cup diameter31.25 mm / 1.2303 in
Cup depthShallow
Rim width8.11 mm / 0.3193 in
Throat diameter7.62 mm / 0.3000 in
Backboresmall
Finish—
Material—
Best suited for
High-volume projection — open throat for power
Cup Diameter
The Bruno Tilz 310-M 42 has a cup diameter of 33.00 mm / 1.2992 in compared to 31.25 mm / 1.2303 in on the Denis Wick 3SL — a difference of 1.75 mm / 0.0689 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Throat Diameter
The Bruno Tilz 310-M 42 has a wider throat (8.90 mm / 0.3504 in vs 7.62 mm / 0.3000 in). A wider throat allows more air through, increasing volume and projection but reducing resistance.
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.