Which has a bigger cup — Bach 1 or Bob Reeves Piccolo 40/B/692?

The Bach 1 has a cup diameter of 17.50 mm / 0.6890 in compared to 15.88 mm / 0.6252 in on the Bob Reeves Piccolo 40/B/692 — a difference of 1.62 mm / 0.0638 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 1 and Bob Reeves Piccolo 40/B/692?

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

Bach 1 vs Bob Reeves Piccolo 40/B/692

Name: Bob Reeves Piccolo 40/B/692
Brand: Bob Reeves

The Bach 1 has a wider cup diameter.

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

The taper behind the throat leading to the shank. Affects projection and tone character.

Mouthpiece A

Bach 1

• Trumpet

Backbore—

Best suited for

🎻Orchestral playing — large cup for full, dark tone

Mouthpiece B

Bob Reeves Piccolo 40/B/692

• Trumpet

Backbore692

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.