Which has a bigger cup — Bach 12 or Bach 22?

The Bach 12 has a cup diameter of 32.75 mm / 1.2894 in compared to 31.60 mm / 1.2441 in on the Bach 22 — a difference of 1.15 mm / 0.0453 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 12 and Bach 22?

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

Bach 12 vs Bach 22

Name: Bach 22
Brand: Bach

The Bach 12 has a wider cup diameter.

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

The narrowest point at the bottom of the cup. Affects resistance, volume, and tone color.

Mouthpiece A

Bach 12

• Tuba

Throat diameter8.33 mm / 0.3280 in

Best suited for

📣High-volume projection — open throat for power

Mouthpiece B

Bach 22

• Tuba

Throat diameter8.33 mm / 0.3280 in

Best suited for

📣High-volume projection — open throat for power

Throat Diameter

Throat diameters are essentially identical at 8.33 mm / 0.3280 in, so resistance feel will be comparable.

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 12 details Bach 22 details Bach 12 equivalents Bach 22 equivalents

Bach 12 vs Bach 22

Throat Diameter

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

Which is better?

Compare Bach 12 with others

Compare Bach 22 with others

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