Bach 8 vs Denis Wick SM6
The Denis Wick SM6 has a wider cup diameter, the Denis Wick SM6 has a larger throat opening.
Mouthpiece A
Bach 8
• Baritone / Euphonium
Cup diameter24.75 mm
Cup depthMedium
Rim width—
Throat diameter5.85 mm
Backbore—
Finish—
Material—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Denis Wick SM6
• Baritone / Euphonium
Cup diameter25.40 mm
Cup depthMedium
Rim width6.26 mm
Throat diameter7.12 mm
Backboremedium
Finish—
Material—
Best suited for
High-volume projection — open throat for power
Cup Diameter
The Denis Wick SM6 has a cup diameter of 25.40 mm compared to 24.75 mm on the Bach 8 — a difference of +0.65 mm. A wider cup generally produces a fuller, darker tone but requires more air support.
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 SM6 has a wider throat (7.12 mm vs 5.85 mm). 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.