How does cup depth compare between Conn Precision 4 and Yamaha SL-48S-GP?

The Conn Precision 4 has a — cup while the Yamaha SL-48S-GP has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Conn Precision 4 vs Yamaha SL-48S-GP

Name: Yamaha SL-48S-GP
Brand: Yamaha

the Conn Precision 4 features a deeper cup.

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

The taper behind the throat leading to the shank. Affects projection and tone character.

Mouthpiece A

Conn Precision 4

• Trombone

Orchestral

Backbore—

Best suited for

📋Bass trombone

🎶Full rich deep tone quality

Mouthpiece B

Yamaha SL-48S-GP

• Trombone

BackboreSemi-wide

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.

Open in interactive tool + Add third mouthpiece Conn Precision 4 details Yamaha SL-48S-GP details Conn Precision 4 equivalents Yamaha SL-48S-GP equivalents

Conn Precision 4 vs Yamaha SL-48S-GP

Playing Characteristics

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