21 Inch Subwoofer Speaker L21/8613 Professional Loudspeaker, 6′′ Voice Coil, 1200RMS Speaker

• Noise: 98dB
• Activity: Passive
• Operation Mode: Button Control
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: L21/8613 subwoofer
• Speaker System: Optional Combination
• Speaker Material: Wood
• Application: Stage Speaker
• Transport Package: Carton Box
• Specification: 6.5 inch
• Trademark: as customer requirement
• Origin: China
• HS Code: 8518290000
• Production Capacity: 2000PCS/Month
• Package Size: 58.50cm * 58.50cm * 24.00cm
• Package Gross Weight: 31.500kg

Product Description

Product Description

Professional 21 inch subwoofer speaker L21/8613 professional loudspeaker, 6'' voice coil, 1200watt
Product main features:
- high power handling capability,1200W RMS power
- 98dB sensitivity 1w/1m
- 23Hz-900Hz frequency response range
- Heavy duty(330mm OD) ceramic magnet
- A B/L n excess of 46 T/m for dynamic voicing
- 150mm/6 inch 2 layers inside/2 layers outside voice coil with polyimide fiberglass former
- Optimum winding length for longer voice coil displacement and increased linear excursion
- Double spider for improved excursion control and linearity
- Double treated cone for water protection
- BL/Re maximized for high quality horn-loaded application

Introduction:
We are a PA speaker factory of more than 13 years in Panyu,Guangzhou,China,occupying 2000 square meters with 3 production lines.We make Pro audio speakers from small sizes upto 24 inch.

R& D Capacity:
In the R&D, Hipower's experienced engineers and technicians carry out researches on new materials.state-of-art components and advacned product designs with the help of an anechoic chamber,test instruments and simulation sofwares.

Markets:
Ever since 2003, we have been exporting to many countries, including Southeast Asia, Europe, North Ameria and South America.
 
Speaker's Details:         

General Specifications
Nominal Diameter	530/21	mm/inch
Rated Impedance	8	ohm
Nominal Power handling	1200	Watts
Program Power	2400	Watts
Sensitivity(lw/lm)	98	dB
Frequency Range	23-900	Hz
Minimum Impedance(Zmin)	9.3	ohm
Voice Coil Diameter	150/6	mm/inch
Voice Coil Material	Copper
Voice Coil Winding Depth	30	mm
Number of layers	4(inside/outside)
Magnet gap depth	12	mm
Surround Shape	Tripple-roll
Basket	Cast Aluminum
Flux Density	1.1	T
Magnet Material/Mass	Ceramic

   

Thiele-Small parameters
Resonance frequency	Fs	23.4	Hz
DC resistance	Re	6.5	ohm
Mechanical factor	Qms	14.4
Electrical factor	Qes	0.22
Total factor	Qts	0.22
Mechanical compliance	Cms	0.1	mm/N
Mechanical resistance of suspension losses	Rms	4.94	mech-ohm
Effective Moving Mass	Mms	485	gr
Half-space efficiency	Eff	2.14	%
BL Factor	BL	45.9	T.m
Equivalent Cas air load	Vas	385	liters
Effective piston area	Sd	0.1698	m2
Max.linear excursion	Xmax	12	mm
Voice-coil inductance	LelK	6.24	mH

 

Mounting Information
Overall Diameter	556	mm
Bolt Circle Diameter	528	mm
Bolt Hole Diameter	6.5	mm
Baffle Cutout Diameter	493	mm
Overall Depth	220	mm
Net Weight	28.5Kg	kg