F250R40
	DIAMETER......................250mm(10inch)
	VOICE COIL IMPEDANCE..............8ohms
	SENSITIVITY........................88dB/w/m
	NOM. POWER.............................20watt
	MAX. POWER.............................40watt
	RESONANCE FREQUENCY...............30Hz
	FREQUENCY RANGE...............fo~2000Hz
	DEPTH.....................109.7mm(4.32inch)
	MOUNTING DIAMETER....249mm(9.80inch)
	MAGNET WEIGHT............502.6g(17.72oz)
	NET WEIGHT................2140.2g(75.48oz)