How does cup depth compare between Conn Imp. Precision 3 and Conn Precision 1?

The Conn Precision 1 has a — cup while the Conn Imp. Precision 3 has a — cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Conn Imp. Precision 3 vs Conn Precision 1

Name: Conn Precision 1
Brand: Conn

the Conn Precision 1 features a deeper cup.

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

The narrowest point at the bottom of the cup. Affects resistance, volume, and tone color.

Mouthpiece A

Conn Imp. Precision 3

• Tuba

General

Throat diameter—

Best suited for

📋Large Eb bass

🎶Full round tone

Mouthpiece B

Conn Precision 1

• Tuba

Orchestral

Throat diameter—

Best suited for

📋BBb bass; orchestral

🎶Exceptionally full deep rich tone

Which is better?

The Conn Imp. Precision 3 is designed for general playing, while the Conn Precision 1 targets orchestral use. Your best choice depends on your musical context.