The R-Series speakers use Alpine’s exclusive cone technology, Carbon Fiber Reinforced Polymer (CFRP), which is a high-strength, lightweight material. CFRP can be custom-formed so that its fibers align in the same direction as the curve and shape of the cone, thereby reducing resonant peaks and increasing the speakers’ mid-bass performance and dynamic range. CFRP is also used as a tweeter diaphragm, enabling the speakers to perform into the 45kHz range and making them compliant with High-Resolution Audio playback.
More Rigid Dust Cap
Talc, a common mineral used in products such as baby powder and paint, has been found to have incredible damping properties while being less dense than the traditional Mica filler used in dust caps. By adding a calculated amount of talc to the mica polypropylene in the dust cap, Alpine were able to increase vibration absorption of the cap while lowering the density. The resulting lighter dust cap contributes to a faster attack and a more accurate reproduction of low frequencies.
Diameter : 12 Inch
Sensitivity : 84.3 dB
Impedance : 4 Ohm
Frequency Response : 24-200 Hz
Peak Power Handling : 2250 Watts
Top Mount Depth : 6-3/8 Inches
Bottom Mount Depth : 7-1/4 Inches
Number of Voice Coils : Dual
Suggested Sealed Box Volume : 0.85 Cubic ft.
Suggested Ported Box Volume : 1.71 Cubic ft.
RMS Power Handling : 750 Watts
12" Dual 4 ohm Type-R Subwoofer
RMS: 750 watts
Recommended power range: 300 - 750W RMS
CTA-2031 compliant power ratings
Parabolic pulp/kevlar cone
Polypropylene, mica and talc dust cap
Reinforced cone neck and spider joint
Cast aluminum frame with integral shorting sleeve
8AWG push terminals with VC configuration jumpers
2.6" High excursion overhung voice coil
127 oz. Strontium ferrite segmented magnet
Top-mount depth: 6-3/8"
Cutout diameter: 10-7/8"
Frequency Response: 24 - 200Hz
Resonance Frequency (Fs): 27Hz
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Warranty: 90 Days Manufacturer warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 1 year from the original date of purchase with proper return authorization.
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