Product Parameters
Item	12 inch Mid-woofer Speaker	Brand	OEM
Place of Production	China	Net weight	about 3.3kg
Outer OD	about 312mm	Magnetic	strong magnet 74mm
Screw hole OD	about 296mm	Voice coil	75mm
Installation hole OD	about 275mm	Material of the paper cone	paper
Height	about 183mm	Material of the frame	Aluminum
Rated impedance	8	ohm
DC impedance	6	ohm
Rated power	500	W
Peak power	1000	W
Sensitivity	97dB	1W/1m
Frequency range	30-3500	Hz
Resonance frequency	Fs	58Hz
DC Impedance	Re	5.3ohm
Electrical Q factor [Qes]	Qes	0.39
Mechanical Q factor [Qms]	Qms	4.3
Total Q factor [Qts]	Qts	0.36
Effective volume	Vas	68.1L
Vibration area	Sd	544.0cm²
Magnetic force	BL	17.7Txm
Moving quality	Mms	59g

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