The YCR-6330II is a high-performance model with a one-piece yellow-brass bell, resulting in smooth continuous airflow and a deep rich resonance.
Specs
| Model | YCR-6330II | YCR-6330SII |
| Key | Bb | Bb |
| Bell Material | One piece, yellow brass | One piece, yellow brass |
| Bell Diameter | 119mm (4-2/3") | 119mm (4-2/3") |
| Bore Size | L 11.73mm (0.462") | L 11.73mm (0.462") |
| Weight | Medium | Medium |
| Finish | Clear lacquer | Silver-plated |
| Mouthpiece | CR-14ES | CR-14ES |
| Case | Included | Included |