18 Inch Subwoofer Super High Power Speaker Professional PRO Audio

• Category: Speaker
• Transmission Mode: Electrical
• Cone: Paper Cone
• Transducer Principle: Permanent Magnetic Speaker
• Style: Wireless
• Radiation Mode: Indirect Radiation Type
• Model NO.: HDW-1813
• Usage: Commercial, Stage, Live Show
• Brand: OEM and ODM Are Both Welcome.
• Sensitivity: 98 dB
• Voice Coil Diameter: 100mm / 4 Inch
• Voice Coil Material: Copper
• Basket: Cast Aluminium
• Frequency Range: 38.7-1.5K Hz
• Type: Subwoofer
• Magnet: 220*2 Ferrite
• Transport Package: by Carton or as Your Requirement
• Specification: Net Weight: 14.35KG
• Trademark: HD
• Origin: China
• HS Code: 851829000
• Production Capacity: 6000pieces/Month

Product Description

18 Inch Subwoofer Super High Power Speaker Professional PRO Audio

Product main features:
- 18 inch PA speaker
- Ideal for subwoofer
- 1500W RMS, 98dB
- 4 inch voice coil, 220mm dual magnets   
- Subwoofer is ideal for high quality professional bass reflex and bass horn systems

General Specifications
Nominal Diameter	460/18	mm/inch
Rated Impedance	8	ohm
Nominal Power handling	900	Watts
Program Power	1800	Watts
Sensitivity(lw/lm)	98	dB
Frequency Range	38.7-1.5K	Hz
Minimum Impedance(Zmin)	5.6	ohm
Voice Coil Diameter	100/4	mm/inch
Voice Coil Material	copper
Number of layers	2
Magnet gap depth	10	mm
Surround Shape	M-roll
Basket	Cast Aluminium
Magnet	220*2 Ferrite
Mounting Information
Overall Diameter	474	mm
Bolt Circle Diameter	450	mm
Baffle Cutout Diameter	426	mm
Overall Depth	210	mm
Net Weight	14.35	kg
Shipping weight	15.5	kg
Shipping Box	500*500*260	mm

 

Thiele-Small Parameters
Resonance frequency	Fs	38.7	Hz
DC resistance	Re	5.6	ohm
Mechanical factor	Qms	7.48
Electrical factor	Qes	0.48
Total factor	Qts	0.45
Mechanical compliance	Cms	0.09	mm/N
Mechanical resistance	Rms	5.9	mech-ohm
of suspension losses
Effective Moving Mass	Mms	180.2	gr
Half-space efficiency	Eff	2.18	%
BL Factor	BL	22.6	T.m
Equivalent Cas air load	Vas	18.7	liters
Voice-coil inductance	LelK	1.4	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.