Denis Wick 5BL vs Denis Wick 5BS
Both mouthpieces share similar core dimensions — the differences are in the details.
Mouthpiece A
Denis Wick 5BL
• Trombone
Cup diameter25.73 mm / 1.0130 in
Cup depthMedium
Rim width6.64 mm / 0.2614 in
Throat diameter6.87 mm / 0.2705 in
Backboremedium
Finish—
Material—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Denis Wick 5BS
• Trombone
Cup diameter25.73 mm / 1.0130 in
Cup depthMedium
Rim width6.64 mm / 0.2614 in
Throat diameter6.87 mm / 0.2705 in
Backboremedium
Finish—
Material—
Best suited for
High-volume projection — open throat for power
Cup Diameter
Both mouthpieces have virtually identical cup diameters at 25.73 mm / 1.0130 in.
Cup Depth
Both mouthpieces share a medium cup depth, so the sound character from depth alone will be very similar.
Throat Diameter
Throat diameters are essentially identical at 6.87 mm / 0.2705 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.