Which has a bigger cup — Kelly SCREAMER-BUGLE or Yamaha TR-14B4?

The Yamaha TR-14B4 has a cup diameter of 16.85 mm / 0.6634 in compared to 16.00 mm / 0.6299 in on the Kelly SCREAMER-BUGLE — a difference of 0.85 mm / 0.0335 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Kelly SCREAMER-BUGLE and Yamaha TR-14B4?

Both mouthpieces share a shallow cup depth, so the sound character from depth alone will be very similar.

Kelly SCREAMER-BUGLE vs Yamaha TR-14B4

Name: Yamaha TR-14B4
Brand: Yamaha

The Yamaha TR-14B4 has a wider cup diameter, the Yamaha TR-14B4 has a larger throat opening.

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

Kelly SCREAMER-BUGLE

• Trumpet

Lead

BackboreS

Best suited for

🎺Lead / commercial — shallow cup for brightness and range

⚡Screamer / high notes — tight throat with shallow cup

📋Lead bugle; high register

Mouthpiece B

Yamaha TR-14B4

• Trumpet

BackboreSemi-narrow

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 Kelly SCREAMER-BUGLE details Yamaha TR-14B4 details Kelly SCREAMER-BUGLE equivalents Yamaha TR-14B4 equivalents

Kelly SCREAMER-BUGLE vs Yamaha TR-14B4

Playing Characteristics

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