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

Mouthpiece A

Conn Imp. Precision 3

• Tuba

General

Backbore—

Best suited for

📋Large Eb bass

🎶Full round tone

Mouthpiece B

Conn Precision 1

• Tuba

Orchestral

Backbore—

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.