8 Ohms Stage Speaker of PRO Sound PA Speaker 12 Inch Subwoofer

• Noise: <95dB
• Hi-Fi: Not Hi-Fi
• Activity: Passive
• Operation Mode: Wire / Remote Control
• Speaker System: Mono
• Speaker Material: Metal
• Model NO.: HDW-1209
• Application: Commercial, Home, Stage, Theater
• Monitor: None
• THD: <0.005%
• Sensitivity: 93 dB
• Voice Coil Diameter: 3 Inch
• Frequency Range: 52-1.8K Hz
• Type: Woofer Speaker
• Magnet: Ferrite 180
• Transport Package: by Export Carton
• Specification: Net Weight: 6.95KG
• Trademark: OEM and ODM are both welcome
• Origin: China
• HS Code: 851829000
• Production Capacity: 5000 Pieces/Month

Product Description

8 Ohms Stage Speaker of PRO Sound PA Speaker 12 Inch Subwoofer
       

General Specifications
Nominal Diameter	300/12	mm/inch
Rated Impedance	8	ohm
Nominal Power handling	300	Watts
Program Power	600	Watts
Sensitivity(lw/lm)	93	dB
Frequency Range	52.3-1.8K	Hz
Minimum Impedance(Zmin)	4	ohm
Voice Coil Diameter	75	mm/inch
Voice Coil Material	copper
Number of layers	2
Magnet gap depth	10	mm
Surround Material	Foam edge
Basket	Cast Aluminium
Magnet	180

Mounting Information
Overall Diameter	311	mm
Bolt Circle Diameter	295	mm
Baffle Cutout Diameter	287	mm
Overall Depth	125	mm
Net Weight	6.95	kg
Shipping weight	7.8	kg
Shipping Box	320*320*150	mm

Thiele-Small Parameters
Resonance frequency	Fs	52.3	Hz
DC resistance	Re	4	ohm
Mechanical factor	Qms	7.05
Electrical factor	Qes	0.38
Total factor	Qts	0.36
Mechanical compliance	Cms	0.08	mm/N
Mechanical resistance	Rms	5.4	mech-ohm
of suspension losses
Effective Moving Mass	Mms	115.3	gr
Half-space efficiency	Eff	1.15	%
BL Factor	BL	20	T.m
Equivalent Cas air load	Vas	31.7	liters
Voice-coil inductance	LelK	2.1	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.