(2) ALPINE S W12D4 12" 1800 Watt Car Audio Subwoofers+Mono Amplifier+Amp Kit Infinity backed by a 1 year limited backed by a 1 year limited manufacturer warranty Skin: Hi Tech Fiberglass Skin with maximum surface roughness Max RMS Power Capacity: 600W RMS 600W Power Handling The 10" and 12" S Series subwoofers are engineered with an improved voice coil allowing the woofer to benefit from an increased power rating of 600 watts
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