12 Inch Passive Speaker Professional Woofer for DJ Speaker System

• Customization: Available
• Noise: <95dB
• Hi-Fi: Not Hi-Fi
• Model NO.: HDW-12473
• Activity: Passive
• Operation Mode: Wire / Remote Control
• Speaker System: Mono
• Speaker Material: Metal
• Application: Commercial, Home, Stage, Theater
• Monitor: None
• THD: <0.005%
• Sensitivity: 97 dB
• Voice Coil Diameter: 3 Inch
• Frequency Range: 47-2.2K Hz
• Type: Woofer Speaker
• Transport Package: by Export Carton
• Specification: Net Weight: 6.9 KG
• Trademark: HD
• Origin: Guangzhou, China
• HS Code: 851829000
• Production Capacity: 5000 Pieces/Month

Product Description

12 Inch Passive Speaker Professional Woofer for DJ Speaker System

       

General Specifications
Nominal Diameter	300/12	mm/inch
Rated Impedance	8	ohm
Nominal Power handling	200	Watts
Program Power	400	Watts
Sensitivity(lw/lm)	97.3	dB
Frequency Range	47-2.4K	Hz
Minimum Impedance(Zmin)	5.3	ohm
Voice Coil Diameter	75	mm/inch
Voice Coil Material	Aluminium
Number of layers	2(in/out)
Magnet gap depth	10	mm
Surround Shape	M-roll
Basket	Cast Aluminium
Magnet	180
Mounting Information
Overall Diameter	315	mm
Bolt Circle Diameter	298	mm
Baffle Cutout Diameter	288	mm
Overall Depth	135	mm
Net Weight	6.9	kg
Shipping weight	7.5	kg
Shipping Box	320*320*150	mm

Thiele-Small Parameters
Resonance frequency	Fs	47.4	Hz
DC resistance	Re	5.3	ohm
Mechanical factor	Qms	6.9
Electrical factor	Qes	0.25
Total factor	Qts	0.24
Mechanical compliance	Cms	0.2	mm/N
Mechanical resistance	Rms	2.5	mech-ohm
of suspension losses
Effective Moving Mass	Mms	56.8	gr
Half-space efficiency	Eff	3.25	%
BL Factor	BL	19	T.m
Equivalent Cas air load	Vas	78.4	liters
Voice-coil inductance	LelK	0.9	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.