12 Inch PRO Sound Subwoofer Sub Woofer Speakers Best DJ Speakers

• Noise: <95dB
• Hi-Fi: Not Hi-Fi
• Activity: Passive
• Operation Mode: Wire / Remote Control
• Speaker System: Mono
• Speaker Material: Metal
• Model NO.: HDW-1211
• Application: Commercial, Home
• Monitor: None
• THD: <0.005%
• Sensitivity: 98 dB
• Magnet: Ferite
• Voice Coil: 3 Inch (75mm)
• Basket: Cast Aluminium
• Transport Package: by Export Carton
• Specification: Net Weight: 7.95KG
• Trademark: HD
• Origin: Guangzhou, China
• HS Code: 851829000
• Production Capacity: 5000 Pieces/Month

Product Description

12 inch PRO Sound Subwoofer Sub Woofer Speakers Best DJ Speakers

     

General Specifications
Nominal Diameter	300/12	mm/inch
Rated Impedance	8	ohm
Nominal Power handling	450	Watts
Program Power	900	Watts
Sensitivity(lw/lm)	98	dB
Frequency Range	51-2.8K	Hz
Minimum Impedance(Zmin)	4.2	ohm
Voice Coil Diameter	75	mm/inch
Voice Coil Material	Aluminium
Number of layers
Magnet gap depth	12	mm
Surround Shape	M-roll
Basket	Cast Aluminium
Magnet	190 Ferrite
Mounting Information
Overall Diameter	313	mm
Bolt Circle Diameter	295	mm
Baffle Cutout Diameter	282	mm
Overall Depth	143	mm
Net Weight	7.95	kg
Shipping weight	8.6	kg
Shipping Box	330*330*150	mm

Thiele-Small Parameters
Resonance frequency	Fs	51	Hz
DC resistance	Re	4.2	ohm
Mechanical factor	Qms	10.33
Electrical factor	Qes	0.36
Total factor	Qts	0.35
Mechanical compliance	Cms	0.17	mm/N
Mechanical resistance	Rms	1.8	mech-ohm
of suspension losses
Effective Moving Mass	Mms	57.9	gr
Half-space efficiency	Eff	2.36	%
BL Factor	BL	14.7	T.m
Equivalent Cas air load	Vas	65.8	liters
Voice-coil inductance	LelK	0.6	mH

INTRODUCTION
Hengda Audio is a professinal speaker manufacturer with experience in the PA speaker field for 10years. We make  different tranducers, compression drivers. We not only provide goods but technology. OEM and ODM are both welcome.