Conn Imp. Precision 4 vs Denis Wick 3SL
the Conn Imp. Precision 4 features a deeper cup.
Mouthpiece A
Conn Imp. Precision 4
• Tuba
GeneralCup diameter—
Cup depthDeep
Rim width—
Throat diameter—
Backbore—
Finish—
MaterialSilver-plated brass
Best suited for
Small Eb bass
Full rich tone
vs
Mouthpiece B
Denis Wick 3SL
• Tuba
Cup diameter31.25 mm / 1.2303 in
Cup depthShallow
Rim width8.11 mm / 0.3193 in
Throat diameter7.62 mm / 0.3000 in
Backboresmall
Finish—
Material—
Best suited for
High-volume projection — open throat for power
Cup Depth
The Conn Imp. Precision 4 has a deep cup while the Denis Wick 3SL has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Material
The Conn Imp. Precision 4 is described as Silver-plated brass, and the Denis Wick 3SL as unspecified. 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.