| YBB-621 | ||
|---|---|---|
| 調性 | Bb | |
| 揚聲口直徑 | 366mm (14 3/8") | |
| 管徑 | 17.5-18.5mm (0.689-0.728") | |
| 外觀 | Clear lacquer | |
| 吹嘴 | BB-67C4 | |
| 樂器盒 | Included | |
| 琴身 | Yellow brass | |
| Height | 825mm | |
| Valves | 4 front pistons | |
| YBB-621 | ||
|---|---|---|
| 調性 | Bb | |
| 揚聲口直徑 | 366mm (14 3/8") | |
| 管徑 | 17.5-18.5mm (0.689-0.728") | |
| 外觀 | Clear lacquer | |
| 吹嘴 | BB-67C4 | |
| 樂器盒 | Included | |
| 琴身 | Yellow brass | |
| Height | 825mm | |
| Valves | 4 front pistons | |
