Which has a bigger cup — Bach 15E or Bach 22D?

The Bach 15E has a cup diameter of 24.40 mm / 0.9606 in compared to 23.92 mm / 0.9417 in on the Bach 22D — a difference of 0.48 mm / 0.0189 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 15E and Bach 22D?

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

Bach 15E vs Bach 22D

Name: Bach 22D
Brand: Bach

The Bach 15E 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 15E

• Trombone

Throat diameter5.85 mm / 0.2303 in

Best suited for

📣High-volume projection — open throat for power

Mouthpiece B

Bach 22D

• Trombone

Throat diameter5.85 mm / 0.2303 in

Best suited for

📣High-volume projection — open throat for power

Throat Diameter

Throat diameters are essentially identical at 5.85 mm / 0.2303 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 15E details Bach 22D details Bach 15E equivalents Bach 22D equivalents

Bach 15E vs Bach 22D

Throat Diameter

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

Which is better?

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Compare Bach 22D with others

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