Denis Wick 12CS vs Kelly 5G-LS
The Kelly 5G-LS has a wider cup diameter, the Kelly 5G-LS features a deeper cup.
Cup Diameter
The Kelly 5G-LS has a cup diameter of 25.40 mm compared to 24.50 mm on the Denis Wick 12CS — a difference of +0.90 mm. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Kelly 5G-LS has a — cup while the Denis Wick 12CS has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Material
The Denis Wick 12CS is described as unspecified, and the Kelly 5G-LS as Lexan polycarbonate. Material affects mass, warmth, and how quickly the piece responds.
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.
Compare Denis Wick 12CS with others
Compare Kelly 5G-LS with others
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