YEP-642SII ยูโฟเนียม
| YEP-642SII | YEP-642II | ||
|---|---|---|---|
| คีย์ | Bb | Bb | |
| ผิว | Silver-plated | Clear lacquer | |
| ปากเป่า | SL-51L | SL-51L | |
| กล่องใส่ | Included | Included | |
| Body | Yellow brass | Yellow brass | |
| Bell Diameter | 300mm (11 4/5") | 300mm (11 4/5") | |
| Bore Size | 15-16.8mm (0.591-0.661") | 15-16.8mm (0.591-0.661") | |
| Height | 664mm | 664mm | |
| Valves | 3 top + 1 side, compensating | 3 top + 1 side, compensating | |
