YBB-321 BBb Tubas

	YBB-321	YBB-321S
規格
調性	Bb	Bb
揚聲口直徑	443mm (17 1/2")	443mm (17 1/2")
管徑	18.5-19.5mm (0.728-0.768")	18.5-19.5mm (0.728-0.768")
外觀	Clear lacquer	Silver-plated
吹嘴	BB-67C4	BB-67C4
樂器盒	Included	Included
規範
琴身	Yellow brass	Yellow brass
Specifications
Height	1018mm	1018mm
Valves	4 top pistons	4 top pistons