Which has a bigger cup — Bob Reeves DR DINO or Schilke 38D?

The Bob Reeves DR DINO has a cup diameter of 25.55 mm / 1.0059 in compared to 19.73 mm / 0.7768 in on the Schilke 38D — a difference of 5.82 mm / 0.2291 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bob Reeves DR DINO and Schilke 38D?

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

Bob Reeves DR DINO vs Schilke 38D

Name: Schilke 38D
Brand: Schilke

The Bob Reeves DR DINO 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

Bob Reeves DR DINO

• Baritone / Euphonium

Backbore—

Mouthpiece B

Schilke 38D

• Baritone / Euphonium

Backbore—

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.