2 Alpine R2-W10D4 10" R-Series next generation 4 Ohm 2250 Max DVC Car Audio Subwoofer + KTE-10G.3 Grills

2 Alpine R2-W10D4 10" R-Series next generation 4 Ohm 2250 Max, 750W RMS DVC Car Audio Subwoofer + KTE-10G.3 Grills Alpine R2-W10D4 2250W Max (750W RMS) 10" R-Series Dual 4-Ohm Car Subwoofer The new R-Series subwoofers take a great platform to the next level. Although the R-Series subwoofers are new for 2017, they come from an impressive Alpine lineage – the Type-R subwoofers. Type-R subwoofers have been known for their power handling, clean output, and deep bass excursion at a mid-line price. Using the highly successful Type-R subwoofers as a foundation, we applied various performance and hardware improvements to the design, fundamentally transforming them into the new R-Series subwoofers – The Next Evolution of Proven Performance. STRONGER CONE ASSEMBLYR-Series subwoofers feature a Kevlar-treated cone for durability. This cone and the Santoprene surround allow the subwoofer to deliver 19mm X-max for incredible, hard-hitting bass. A new method of attaching the spider and cone to the voice coil ensures rigidity throughout the motor structure and increases the subwoofer's accuracy. 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, we increased the cap's vibration absorption while lowering its density. The lighter dust cap contributes to a faster attack and a more accurate reproduction of low frequencies. NEW POWER RATING All four R-Series subwoofers are rated at 750W RMS. They perfectly match the PDR-M65 Mono Power Density Amplifier, creating an efficient system. General Features: 10" Dual 4 ohm Type-R Subwoofer Peak Power Handling: 2250 watts RMS Power Handling: 750 watts Recommended power range: 300 - 750W RMS CTA-2031 compliant power ratings Parabolic pulp/kevlar cone H.A.M.R. surround 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 111 oz. Strontium ferrite segmented magnet Top-mount depth: 5-7/8" Cutout diameter: 9-1/16" Frequency Response: 26 - 200Hz Sensitivity: 82.4dB Resonance Frequency (Fs): 30Hz Authorized Dealer 1-year Manufacturer's Warranty What's in the R2-W10D4 package: R2-W10D4 owner's manual 10" Dual 4-ohm voice coil subwoofer 1 Rubber concealing ring  Four 3" jumper cables  R-Series Subwoofer Application Guide Online product registration information Warranty Information Important Notice! Warning:This product can expose you to, known to the State of California to cause cancer. For more information, go to P65Warnings.ca. https://www.alpine-usa.com/product/r-series-subwoofer-r2w10d4 https://www.youtube.com/watch?v=J8g6EZzZQyI&t=131s