| Control Interface |
| Valve |
Number of Valves |
3 top action + 1 side action |
| Design/Architecture Detail |
| Bell |
Bell Size |
480mm (19") |
| Bore |
Bore Size |
17.5-18.5mm (0.689-0.728") |
| Material |
| Body |
Yellow brass |
| Voices |
| Key |
E♭/B♭ (compensating system) |
| Accessories |
| Included Accessories |
Case |
EBC-632 |
| Mouthpiece |
66D4 |
