Heavy Duty 18 Inch Professional Audio Best PRO Speaker Subwoofer

• Noise: <95dB
• Hi-Fi: Not Hi-Fi
• Activity: Passive
• Operation Mode: Wire / Remote Control
• Speaker System: Mono
• Speaker Material: Metal
• Model NO.: HDW-1868
• Application: Commercial, Stage, Theater, Live Show
• Monitor: None
• THD: 0.005%-0.01%
• Sensitivity: 97 dB
• Voice Coil Diameter: 100mm / 4 Inch
• Voice Coil Material: Copper
• Basket: Cast Aluminium
• Frequency Range: 33.4-1.8K Hz
• Type: Subwoofer
• Magnet: 220*2 Ferrite
• Transport Package: by Carton or as Your Requirement
• Specification: Net Weight: 18.85KG
• Trademark: OEM and ODM are both welcome
• Origin: China
• HS Code: 851829000
• Production Capacity: 4000pieces/Month

Product Description

Heavy Duty 18 Inch Professional Audio Best Pro Speaker Subwoofer

Product main features:
- 18 inch PA speaker
- Ideal for subwoofer
- 900W 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)	97	dB
Frequency Range	33.4-1.8K	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	14	mm
Surround Shape	W-roll
Basket	Cast Aluminum
Magnet	220*2 Ferrite
Mounting Information
Overall Diameter	469	mm
Bolt Circle Diameter	448	mm
Baffle Cutout Diameter	424	mm
Overall Depth	236	mm
Net Weight	18.85	kg
Shipping weight	20.1	kg
Shipping Box	490*490*260	mm

Thiele-Small Parameters
Resonance frequency	33.4	35.5	Hz
DC resistance	5.6	5.6	ohm
Mechanical factor	9.89	4.99
Electrical factor	0.44	0.41
Total factor	0.42	0.38
Mechanical compliance	0.09	0.06	mm/N
Mechanical resistance	5.5	15.6	mech-ohm
of suspension losses
Effective Moving Mass	261.4	349.2	gr
Half-space efficiency	1.43	1.21	%
BL Factor	26.5	32.6	T.m
Equivalent Cas air load	173.9	115.2	liters
Voice-coil inductance	1.1	1.2	mH