Bach 30E vs Denis Wick 5L
the Denis Wick 5L features a deeper cup, the Bach 30E has a larger throat opening.
Mouthpiece A
Bach 30E
• Tuba
Cup diameter30.00 mm / 1.1811 in
Cup depthShallow
Rim width—
Throat diameter8.33 mm / 0.3280 in
Backbore—
Finish—
Material—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Denis Wick 5L
• Tuba
Cup diameter30.00 mm / 1.1811 in
Cup depthVery deep
Rim width7.14 mm / 0.2811 in
Throat diameter7.89 mm / 0.3106 in
Backboremedium
Finish—
Material—
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
Cup Diameter
Both mouthpieces have virtually identical cup diameters at 30.00 mm / 1.1811 in.
Cup Depth
The Denis Wick 5L has a very deep cup while the Bach 30E has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Bach 30E has a wider throat (8.33 mm / 0.3280 in vs 7.89 mm / 0.3106 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.