Denis Wick SM3 vs Denis Wick SM4
The Denis Wick SM3 has a wider cup diameter.
Mouthpiece A
Denis Wick SM3
• Baritone / Euphonium
Cup diameter26.40 mm / 1.0394 in
Cup depthVery deep
Rim width6.80 mm / 0.2677 in
Throat diameter7.38 mm / 0.2906 in
Backborebarrel
Finish—
Material—
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
vs
Mouthpiece B
Denis Wick SM4
• Baritone / Euphonium
Cup diameter26.00 mm / 1.0236 in
Cup depthVery deep
Rim width6.72 mm / 0.2646 in
Throat diameter7.38 mm / 0.2906 in
Backborebarrel
Finish—
Material—
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
Cup Diameter
The Denis Wick SM3 has a cup diameter of 26.40 mm / 1.0394 in compared to 26.00 mm / 1.0236 in on the Denis Wick SM4 — a difference of 0.40 mm / 0.0157 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
Both mouthpieces share a very deep cup depth, so the sound character from depth alone will be very similar.
Throat Diameter
Throat diameters are essentially identical at 7.38 mm / 0.2906 in, so resistance feel will be comparable.
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.