Which has a bigger cup — Bach 32E or Yamaha BB-BOBO-SOLO-GP?

The Yamaha BB-BOBO-SOLO-GP has a cup diameter of 32.20 mm / 1.2677 in compared to 29.50 mm / 1.1614 in on the Bach 32E — a difference of 2.70 mm / 0.1063 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 32E and Yamaha BB-BOBO-SOLO-GP?

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

Bach 32E vs Yamaha BB-BOBO-SOLO-GP

Name: Yamaha BB-BOBO-SOLO-GP
Brand: Yamaha

The Yamaha BB-BOBO-SOLO-GP has a wider cup diameter, the Bach 32E 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 32E

• Tuba

Material—

Best suited for

📣High-volume projection — open throat for power

Mouthpiece B

Yamaha BB-BOBO-SOLO-GP

• 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 32E details Yamaha BB-BOBO-SOLO-GP details Bach 32E equivalents Yamaha BB-BOBO-SOLO-GP equivalents

Bach 32E vs Yamaha BB-BOBO-SOLO-GP

Playing Characteristics

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