1. woofer 2.ideal for high quality comapct 2 or 3-way systems 3.350W RMS,97dB 4.3 inch voice coil,180mm magnet

5. PA woofer of  low distortion

5. Hipower Audio is a professinal speaker factory with experience in the speaker field for 8 years. We make our own tranducers ,HF drivers and empty cabinets.

7.details:

General Specifications
Nominal Diameter	300/12	mm/inch
Rated Impedance	8	ohm
Nominal Power handling1	350	Watts
Program Power2	700	Watts
Sensitivity(lw/lm)3	97.5	dB
Frequency Range4	46-3.0K	Hz
Minimum Impedance(Zmin)	6.3	ohm
Voice Coil Diameter	75/3	mm/inch
Voice Coil Material	Copper
Voice Coil Winding Depth	19	mm
Number of layers	2
Magnet gap depth	10	mm
Surround Shape	M-roll
Basket	Cast Aluminum
Flux Density	1.0	T
Magnet Material/Mass	Ceramic

Thiele-Small parameters
Resonance frequency	Fs	46	Hz
DC resistance	Re	5.2	ohm
Mechanical factor	Qms	16.5
Electrical factor	Qes	0.25
Total factor	Qts	0.25
Mechanical compliance	Cms	0.20	mm/N
Mechanical resistanceof suspension losses	Rms	1.07	mech-ohm
Effective Moving Mass	Mms	61.1	gr
Half-space efficiency	Eff	2.99	%
BL Factor	BL	19.2	T.m
Equivalent Cas air load	Vas	79.5	liters
Effective piston area	Sd	0.0539	m2
Max.linear excursion	Xmax	7	mm
Voice-coil inductance	LelK	1.2	mH

Mounting Information
Overall Diameter	318	mm
Bolt Circle Diameter	301	mm
Bolt Hole Diameter	6.5x9	mm
Baffle Cutout Diameter	287	mm
Overall Depth	142	mm
Net Weight	7	kg

td

L12/64149-12" woofer