Nominal Diameter 460 (18) mm (in)
Nominal Impedance 4 or 8 Ohm
Magnet Weight 125 OZ
RMS Power Rating 1000 Watts
Program Power 2000 Watts
Sensitivity (1W/1m) 97.5 dB SPL
Frequency Range 25Hz - 1kHz
Voice Coil Diameter 4 inch / 100mm
Voice Coil Material Copper
Former Material Kapton
Basket Material Cast Aluminium
Cone Material Paper
Surround Material Cloth
The reason to work with Ningbo ASM manufacturing:
1) Focus on every detail
2) Full line PRO audio One-stop service
3) Well quality control and guarantee (Free spare parts)
4) Minimum OEM/ODM quantity request
5) factory with Professional production technology
Company Profile
We are a professional manufacturer specializing in all kinds of audio speakers.Also we have our professional designers to meet any requirements.
Established in 2001, NINGBO ASM as become one of the largest companies special- ized in Subwoofer, Car speakers, Tweeter, Speaker systems, Boom box, professional sound systems, and other audio accessories.
As an audio equipment manufacturer with an area of 1500sq.m.,6 production lines(2 lines for car audio
systems, 2 lines for professional audio systems, 2 lines for relevant audio accessories), over 100 employees, and the certificate of ISO9001:2000 system, we still keeps specialized in R&D, sales, and OEM/ODM services.
Until 2016 Year,75-95% of our products export to overseas markets, such as the United states, Europe, Middle-east, and South America etc.
We have entry level, normal level and high-end level products.
More than 10 years was a glorious time for ASM, but ASM will certainly makes greater achievements in the future international market competition.
Ningbo ASM promises to offer his best services to his customers forever.
Audited Supplier 
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