Denis Wick 6BM vs Giardinelli 4M
the Denis Wick 6BM has a larger throat opening.
Mouthpiece A
Denis Wick 6BM
• Baritone / Euphonium
Cup diameter25.40 mm / 1.0000 in
Cup depthMedium
Rim width6.26 mm / 0.2465 in
Throat diameter7.12 mm / 0.2803 in
Backboremedium
Finish—
Material—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Giardinelli 4M
• Baritone / Euphonium
Cup diameter25.40 mm / 1.0000 in
Cup depthMedium
Rim width—
Throat diameter6.40 mm / 0.2520 in
Backbore1/4" (.250)
Finish—
Material—
Best suited for
High-volume projection — open throat for power
Cup Diameter
Both mouthpieces have virtually identical cup diameters at 25.40 mm / 1.0000 in.
Cup Depth
Both mouthpieces share a medium cup depth, so the sound character from depth alone will be very similar.
Throat Diameter
The Denis Wick 6BM has a wider throat (7.12 mm / 0.2803 in vs 6.40 mm / 0.2520 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.