Which has a bigger cup — Bach 8½A or Yamaha CR-14ES?

The Yamaha CR-14ES has a cup diameter of 16.86 mm / 0.6638 in compared to 16.10 mm / 0.6339 in on the Bach 8½A — a difference of 0.76 mm / 0.0299 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 8½A and Yamaha CR-14ES?

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

Bach 8½A vs Yamaha CR-14ES

Name: Yamaha CR-14ES
Brand: Yamaha

The Yamaha CR-14ES has a wider cup diameter, the Yamaha CR-14ES has a larger throat opening.

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

Base metal or construction (e.g. brass, stainless steel, plastic). Influences weight, response, and tone color.

Mouthpiece A

Bach 8½A

• Cornet

Material—

Mouthpiece B

Yamaha CR-14ES

• Cornet

Material—

Best suited for

🎻Orchestral playing — large cup for full, dark tone

📣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 Bach 8½A details Yamaha CR-14ES details Bach 8½A equivalents Yamaha CR-14ES equivalents

Bach 8½A vs Yamaha CR-14ES

Playing Characteristics

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