How does cup depth compare between Conn Imp. Precision 4 and Yamaha SL-53L?

The Conn Imp. Precision 4 has a — cup while the Yamaha SL-53L has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Conn Imp. Precision 4 vs Yamaha SL-53L

Name: Yamaha SL-53L
Brand: Yamaha

the Conn Imp. Precision 4 features a deeper cup.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material

The internal diameter of the cup, measured at the widest point inside the rim.

Mouthpiece A

Conn Imp. Precision 4

• Trombone

Orchestral

Cup diameter—

Best suited for

📋Bass trombone / large bore tenor

🎶Full rich deep tone

Mouthpiece B

Yamaha SL-53L

• Trombone

Cup diameter25.91 mm / 1.0201 in

Best suited for

📣High-volume projection — open throat for power

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.

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Conn Imp. Precision 4 vs Yamaha SL-53L

Playing Characteristics

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