12 Inch PRO Audio Professional Passive PA Speaker

• Noise: <95dB
• Hi-Fi: Not Hi-Fi
• Activity: Passive
• Operation Mode: Wire / Remote Control
• Speaker System: Passive
• Speaker Material: Metal
• Model NO.: HDW-12752
• Application: Commercial, Stage
• Monitor: None
• THD: <0.005%
• Type: 12 Inch Subwoofer
• Magnet: Ferrite
• Voice Coil: 3 Inch
• Basket: Cast Aluminium
• Nominal Power Handling: 700 Watts
• Sensitivity: 99 dB
• Frequency Range: 59-3K Hz
• Transport Package: by Export Carton or as Your Requirement
• Specification: Net Weight: 8.95KG
• Trademark: HD
• Origin: Guangzhou, China
• HS Code: 851829000
• Production Capacity: 5000 Pieces/Month

Product Description

12 Inch PRO Audio Professional Passive PA Speaker

General Specifications
Nominal Diameter	300/12	mm/inch
Rated Impedance	8	ohm
Nominal Power handling	350	Watts
Program Power	700	Watts
Sensitivity(lw/lm)	99	dB
Frequency Range	59.3-3K	Hz
Minimum Impedance(Zmin)	4.8	ohm
Voice Coil Diameter	75	mm/inch
Voice Coil Material	copper
Number of layers	2
Magnet gap depth	10	mm
Surround Shape	M-roll
Basket	Cast Aluminium
Magnet	170 Ferrite
Mounting Information
Overall Diameter	314	mm
Bolt Circle Diameter	295	mm
Baffle Cutout Diameter	287	mm
Overall Depth	143	mm
Net Weight	6.15	kg
Shipping weight	7	kg
Shipping Box	320*320*150	mm

Thiele-Small Parameters
Resonance frequency	Fs	59.3	Hz
DC resistance	Re	4.8	ohm
Mechanical factor	Qms	8.1
Electrical factor	Qes	0.39
Total factor	Qts	0.38
Mechanical compliance	Cms	0.12	mm/N
Mechanical resistance	Rms	2.8	mech-ohm
of suspension losses
Effective Moving Mass	Mms	60.6	gr
Half-space efficiency	Eff	2.39	%
BL Factor	BL	16.6	T.m
Equivalent Cas air load	Vas	46.9	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.