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The S-Series speakers have a large voice coil. The 6.5-inch and 6x9-inch models have a 35-mm voice coil, and this large voice coil size increases their driving power and control of the motor. The S-Series speakers are the first in the industry to use a material called CFRP (Carbon Fiber Reinforced Plastic), a very lightweight yet rigid material.
Alpine’s patented H.A.M.R. (High Amplitude Multi-Roll) surround is now found on the S-Series speakers. This proven technology increases excursion while maintaining accuracy and linearity. The multi-roll design allows for an even unfolding of the surround which creates incredible linearity and colorization rejection.
6-1/2", 225 Watts Peak Power, 2-Way Car Component Speaker System
Auditor Series 6-1/2" 100 Watts Peak Power 2-Way Car Component Kit
Bullfrog 400 BT/FM outdoor audio system w/3" drivers; green, weatherproof
PX Series 6-1/2", 240 Watts Max Power, 4 Ohm, Coaxial Car Speaker - Sold as each
540 Watts Peak Power 6-1/2" Reference Series 2-Way Component Car Speakers
6x9" 100W RMS (300W Peak Power) 4-ohm Impedance 2-Way Component Systems
R Series 6"x9" 300 Watts Max Power 2-Way Component Speaker System
Reference Series 6x9" 375 Watts Peak Power Component Car System
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