Bob Reeves 11C vs Denis Wick 5AL
The Denis Wick 5AL has a wider cup diameter, the Denis Wick 5AL features a deeper cup.
Mouthpiece A
Bob Reeves 11C
• Trombone
Cup diameter24.80 mm / 0.9764 in
Cup depthShallow
Rim width—
Throat diameter—
Backbore—
Finish—
Material—
vs
Mouthpiece B
Denis Wick 5AL
• Trombone
Cup diameter25.73 mm / 1.0130 in
Cup depthMedium
Rim width6.64 mm / 0.2614 in
Throat diameter7.30 mm / 0.2874 in
Backborebarrel
Finish—
Material—
Best suited for
High-volume projection — open throat for power
Cup Diameter
The Denis Wick 5AL has a cup diameter of 25.73 mm / 1.0130 in compared to 24.80 mm / 0.9764 in on the Bob Reeves 11C — a difference of 0.93 mm / 0.0366 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Denis Wick 5AL has a medium cup while the Bob Reeves 11C has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
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.