MODEL??	FBF50-4
DIMENSION??	50mm   x   10.5mm
VOICE COIL IMP??	8 ohm
SOUND PRESSVRE LEVEL?¡§S.P.L????	88 dB
RESONAT FREQUENEY??	320 Hz
EFFECTIVE FREQUENEY??	fo-12000 Hz
NOISE POWER??	0.5 w
MAGNET SIZE AND ASSEMBLY??	21mm Ferrite