Hdw-1238 High Quality 12 Inch 300W Powered PA/DJ Bass Woofer Audio System

• Customization: Available
• Noise: <95dB
• Hi-Fi: Not Hi-Fi
• Model NO.: HDW-1238
• Activity: Passive
• Operation Mode: Wire / Remote Control
• Speaker System: Mono
• Speaker Material: Metal
• Application: Commercial, Home, Stage, Theater
• Monitor: None
• THD: <0.005%
• Sensitivity: 96.4 dB
• Voice Coil Material: Copper
• Voice Coil Diameter: 3 Inch
• Net Weight: 7.3 Kg
• Magnet: Ferrite
• Transport Package: by Export Carton
• Specification: 12 inch woofer
• Trademark: HD
• Origin: Guangzhou, China
• HS Code: 851829000
• Production Capacity: 5000 Pieces/Month

Product Description

HDW-1238 High Quality  12 Inch 300W Powered PA/DJ Bass Woofer Audio system

General Specifications
Nominal Diameter	300/12	mm/inch
Rated Impedance	8	ohm
Nominal Power handling	300	Watts
Program Power	600	Watts
Sensitivity(lw/lm)	96.4	dB
Frequency Range	44.4-2.5K	Hz
Minimum Impedance(Zmin)	5.6	ohm
Voice Coil Diameter	75	mm/inch
Voice Coil Material	Copper
Number of layers
Magnet gap depth	10	mm
Surround Shape	M-roll
Basket	Cast Aluminium
Magnet	190
Mounting Information
Overall Diameter	313	mm
Bolt Circle Diameter	295	mm
Baffle Cutout Diameter	282	mm
Overall Depth	145	mm
Net Weight	7.3	kg
Shipping weight	7.95	kg
Shipping Box	320*320*150	mm

Resonance frequency	Fs	44.4	Hz
DC resistance	Re	4.7	ohm
Mechanical factor	Qms	4.4
Electrical factor	Qes	0.31
Total factor	Qts	0.29
Mechanical compliance	Cms	0.26	mm/N
Mechanical resistance	Rms	3.2	mech-ohm
of suspension losses
Effective Moving Mass	Mms	50.2	gr
Half-space efficiency	Eff	2.73	%
BL Factor	BL	14.5	T.m
Equivalent Cas air load	Vas	100.9	liters
Voice-coil inductance	LelK	0.7	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.