Denis Wick 5BFL vs GR Technologies 67FL
The GR Technologies 67FL has a wider cup diameter, the Denis Wick 5BFL features a deeper cup.
Mouthpiece A
Denis Wick 5BFL
• Flugelhorn
Cup diameter16.00 mm / 0.6299 in
Cup depthDeep
Rim width5.30 mm / 0.2087 in
Throat diameter4.45 mm / 0.1752 in
Backboreopen
Finish—
Material—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
GR Technologies 67FL
• Flugelhorn
Cup diameter17.00 mm / 0.6693 in
Cup depthMedium
Rim width—
Throat diameter—
Backbore—
Finish—
Material—
Cup Diameter
The GR Technologies 67FL has a cup diameter of 17.00 mm / 0.6693 in compared to 16.00 mm / 0.6299 in on the Denis Wick 5BFL — a difference of 1.00 mm / 0.0394 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Denis Wick 5BFL has a deep cup while the GR Technologies 67FL has a medium 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.