Conn Imp. Precision 5 vs Denis Wick 1AL
Both mouthpieces share similar core dimensions — the differences are in the details.
Mouthpiece A
Conn Imp. Precision 5
• Trombone
GeneralCup diameter—
Cup depthVery deep
Rim width—
Throat diameter—
Backbore—
Finish—
MaterialSilver-plated brass
Best suited for
Connstellation-equipped tenor trombone
Designed for Connstellation 24I/25I
vs
Mouthpiece B
Denis Wick 1AL
• Trombone
Cup diameter27.11 mm / 1.0673 in
Cup depthVery deep
Rim width6.09 mm / 0.2398 in
Throat diameter7.45 mm / 0.2933 in
Backboreopen
Finish—
Material—
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
Cup Depth
Both mouthpieces share a very deep cup depth, so the sound character from depth alone will be very similar.
Material
The Conn Imp. Precision 5 is described as Silver-plated brass, and the Denis Wick 1AL 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.