Bruno Tilz 306-5 GS vs Conn Imp. Precision 5
the Conn Imp. Precision 5 features a deeper cup.
Mouthpiece A
Bruno Tilz 306-5 GS
• Trombone
CatalogCup diameter26.00 mm / 1.0236 in
Cup depthMedium
Rim width—
Throat diameter6.80 mm / 0.2677 in
Backbore—
Finish—
Material—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
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
Cup Depth
The Conn Imp. Precision 5 has a very deep cup while the Bruno Tilz 306-5 GS has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Material
The Bruno Tilz 306-5 GS is described as unspecified, and the Conn Imp. Precision 5 as Silver-plated brass. Material affects mass, warmth, and how quickly the piece responds.
Which is better?
The Bruno Tilz 306-5 GS is designed for catalog playing, while the Conn Imp. Precision 5 targets general use. Your best choice depends on your musical context.