| YBH-621 | YBH-621S | ||
|---|---|---|---|
| 調性 | Bb | Bb | |
| 揚聲口直徑 | 211mm (8 3/8") | 211mm (8 3/8") | |
| 管徑 | 12.8-13.5mm (0.504-0.531") | 12.8-13.5mm (0.504-0.531") | |
| 外觀 | Clear lacquer | Silver-plated | |
| 吹嘴 | SL-45C2S | SL-45C2S | |
| 樂器盒 | Included | Included | |
| 琴身 | Yellow brass | Yellow brass | |
| Height | 592mm | 592mm | |
| Valves | 3 top + 1 side | 3 top + 1 side | |
