L15/8512F-professional Subwoofer

1.professional Subwoofer 2.550W RMS,97dB 3.4 inch voice coil,220mm magnet

4.suitable for band-pass, bass reflex subwoofer

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.

6.Details:

General Specifications :Subwoofer
Nominal Diameter	380/45	mm/inch
Rated Impedance	8	ohm
Nominal Power handling1	550	Watts
Program Power2	1100	Watts
Sensitivity(lw/lm)3	97	dB
Frequency Range4	41-1.5K	Hz
Minimum Impedance(Zmin)	7.9	ohm
Voice Coil Diameter	100/4	mm/inch
Voice Coil Material	Copper
Voice Coil Winding Depth	21	mm
Number of layers	2
Magnet gap depth	12	mm
Cone Shape	Straight
Surround Shape	Triple-roll
Basket	CastAluminum
Flux Density	1.0	T
Magnet Material/Mass	Ceramic/3.55	kg

Thiele-Small parameters
Resonance frequency	Fs	41	Hz
DC resistance	Re	6.4	ohm
Mechanical factor	Qms	2.95
Electrical factor	Qes	0.36
Total factor	Qts	0.32
Mechanical compliance	Cms	0.10	mm/N
Mechanical resistanceof suspension losses	Rms	12.8	mech-ohm
Effective Moving Mass	Mms	144	gr
Half-space efficiency	Eff	2.2	%
BL Factor	BL	26	T.m
Equivalent Cas air load	Vas	117	liters
Effective piston area	Sd	0.0908	m2
Max.linear excursion	Xmax	8	mm
Voice-coil inductance	LelK	1.67	mH

Mounting Information
Overall Diameter	388	mm
Bolt Circle Diameter	370	mm
Bolt Hole Diameter	6.5	mm
Baffle Cutout Diameter	358	mm
Overall Depth	153	mm
Net Weight	11	kg

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L15/8512F-professional Subwoofer