21FS12501--21 Inch Compact Subwoofer Professional Loudspeaker, 5'' Voice Coil, 1000RMS Speaker for Stage

Product main features:
- high power handling capability,1000W RMS power
- 96dB sensitivity 1w/1m
- 30Hz-1k Hz frequency response range
- Heavy duty(280mm) ceramic magnet
- 125mm/5 inch voice coil of copper

Introduction:
Guangzhou Dingyun Speaker Factory is a manufacturer specializing in the development and production of acoustic loudspeaker.
 
over the years, the company has invested enormous human and material resources on the research and development of the speaker. Our product is not only gaining a certain share in the domestic market, but also doing some R&D work and OEM for some well-known foreign brands. Bearing with the concept "experienced Technology, professional quality",we are striving to develop high-quality products. Therefore, the key the materials are purchased from  United Kingdom, the United States, Malaysia and Taiwan manufacturers. Thus, we have been improving the comprehensive competitiveness of price and quality. Hence, Dy has won a good reputation among the industry.It will be our great honor to work long-term with friends from all over the world.
 
for any needs or inquiries, please don't hesitate to contact us!

R&D capability:
in the R&D, Dingyun's engineers have more than 14 years of experience in the field and carry out researches on new materials.State-of-art components and advacned product designs with the help of the test instruments and simulation sofwares.
Speaker's Details:

General Specifications
Nominal Diameter	545/21	Mm/Inch
Rated Impedance	8	Ohm
Nominal Power handling	1000	Watts
Program Power	2000	Watts
Sensitivity(1w/1m)	96	dB
Frequency Range	30-1k	Hz
Voice Coil Diameter	125/5	Mm/inch
Voice Coil Material	Copper
Voice Coil Winding Depth	26	mm
Magnet Gap Depth	12	mm
Basket	Cast Aluminum
Flux Density	1.05	T
Magnet Material/Mass	Ceramic
Thiele-Small Parameters
Fs	30	Hz
Re	5.6	Ohm
Qms	6.8
Qes	0.38
Qts	0.36
Vas	341	Liters
Mms	306	gr
Cms	0.087	Mm/N
No	2.5	%
Bl	29	Tm
Sd	0.166	m2
Xmax	10	mm
Mounting Information
Overall Diameter	545	mm
Bolt Circle Diameter	520	mm
Bolt Hole Diameter	8*8	mm
Baffle Cutout Diameter	495	mm
Overall Depth	210	mm
Net weight	22	kg
Shipping weight	24.5	kg