Which has a bigger cup — Bach 22 or Yamaha BB-67C4?

The Yamaha BB-67C4 has a cup diameter of 32.06 mm / 1.2622 in compared to 31.60 mm / 1.2441 in on the Bach 22 — a difference of 0.46 mm / 0.0181 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 22 and Yamaha BB-67C4?

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

Bach 22 vs Yamaha BB-67C4

Name: Yamaha BB-67C4
Brand: Yamaha

The Yamaha BB-67C4 has a wider cup diameter, the Bach 22 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 22

• Tuba

Material—

Best suited for

📣High-volume projection — open throat for power

Mouthpiece B

Yamaha BB-67C4

• Tuba

Material—

Best suited for

📣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 22 details Yamaha BB-67C4 details Bach 22 equivalents Yamaha BB-67C4 equivalents

Bach 22 vs Yamaha BB-67C4

Playing Characteristics

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Which is better?

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