YCB-621 C 調低音號

	YCB-621	YCB-621S
規格
調性	C	C
琴體	Yellow brass	Yellow brass
揚聲口直徑	366mm (14 3/8")	366mm (14 3/8")
管徑	17.5-18.5mm (0.689-0.728")	17.5-18.5mm (0.689-0.728")
高度	825mm	825mm
按鍵	4 front pistons	4 front pistons
外觀	Clear lacquer	Silver-plated
吹嘴	BB-67C4	BB-67C4
樂器軟袋	Included	Included