Detailed specifications for the Bob Reeves Trumpet mouthpiece line. Compare cup depth, rim diameter, throat, backbore, and intended use across models.
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1. Rim Sizes and Comparison Information
| Rim Number | Diameter | Rim Width | Measured | "Feel" |
|---|---|---|---|---|
| 40 | 40/64" | Medium | 12C Elkhart 10-1/2C Mt. Vernon | 10-1/2C Mt. Vernon |
| 41 | 41/64" | Medium | 8C Elkhart 7C Mt. Vernon | 7C Mt. Vernon |
| 42 | 42/64" | Medium | 7EW Elkhart Heim #2 | 3C & 6C Elkhart |
| 43 | 43/64" | Medium Narrow | New York 7 | 2-3/4C Elkhart |
| 43N | 43/64" | Narrow | 7D Elkhart 6C Mt. Vernon New York 7 & 7C | 6C Mt. Vernon |
| 43W | 43/64" | Cushion | Similar to #43 with Cushion Rim | Like 2-3/4C with cushion |
| 43.5 | 43.5/64" | Medium Narrow | 3C and 5C Elkhart | 5C Elkhart |
2. Cup Sizes
| Cup | Description |
|---|---|
| ES | Extra Shallow: Very shallow bowl shape, Great for commercial lead playing. |
| SV | Shallow: "V": Very shallow conical shape. Desired by high note jazz artists. |
| S | Shallow: Shallow bowl shape. Excellent all around commercial/Piccolo Mouthpiece. |
| M | Medium: Medium bowl shape. Good all around mouthpiece. |
| D | Medium deep, conical bowl shape: Best for light classical, chamber work. |
| V | Deep conical shape: Preferred by be-bop jazz players (funky sound). |
| C | Medium deep bowl shape: General classical utility cup. |
| B | Deep conical with bowl shape: Used by players desiring extremely dark sound. |
3. Backbore Options
| Backbore | Description |
|---|---|
| 692SL | An extremely efficient backbore. It is the 692s backbore but at the length of a conventional mouthpiece. This increases the straight bore leading to a full, but focused sound. |
| 692s | Good for upper register & very open horns |
| 2 | Our standard back bore. More centered than Bach. Excellent tone color and intonation. |
| 69 | Good for big band playing. Records well, bright, focused sound. |
| 692 | Good for big band playing. Freer than "69." Slightly darker, broader sound. |
| 3 | Flexible, big sound. Very free flowing. Good for strong jazz player. |
Specifications sourced from manufacturer published data. For corrections, please contact us.