| Model No. | Rim Inner Diameter (mm) | Throat (mm) |
Characteristics |
|---|---|---|---|
| TR-11B4-GP | 16.46 | 3.65 | A somewhat shallow cup and medium rim for extra endurance. Brilliant tone. Suitable for D, Eb, and piccolo trumpets. |
| TR-14A4a-GP | 16.68 | 3.65 | Fast-response high range and powerful sound. Ideal for piccolo or lead trumpet. |
| TR-14B4-GP | 16.85 | 3.65 | Relatively large rim diameter and shallow cup. Outstanding overall balance for all musical genres. |
| TR-14C4-GP | 16.88 | 3.65 | Rim designed for outstanding facility and flexibility. Popular in ensembles and orchestras. Can produce high volume. |
| TR-16C4-GP | 17.00 | 3.65 | Large rim and medium cup for easy playability over a wide range. High volume. Excellent for symphony orchestra players. |
| TR-17C4-GP | 17.30 | 3.65 | Powerful, dark sound. A popular choice with symphony orchestra players. |