{"id":6536330641444,"title":"W12S4 Alpine 12 SVC Subwoofer","handle":"w12s4","description":"\u003cp\u003e\u003cstrong\u003eW12S4 Alpine BassLine Series 12\" 4-ohm subwoofer\u003c\/strong\u003e\u003cbr\u003eThe BASS subwoofers are engineered to be fun and loud in a budget friendly category by combining retro styling with enough efficiency to run on 250W RMS.\u003cbr\u003eAn optimized magnet circuit allows more focused magnetism in the gap which results in improved efficiency. 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Alpine BassLine Series 12\" 4-ohm subwoofer\u003c\/strong\u003e\u003cbr\u003eThe BASS subwoofers are engineered to be fun and loud in a budget friendly category by combining retro styling with enough efficiency to run on 250W RMS.\u003cbr\u003eAn optimized magnet circuit allows more focused magnetism in the gap which results in improved efficiency. This means tighter bass control and more output!\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSize: 12\"\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpedance: 4 Ohms\u003c\/li\u003e\n\u003cli\u003ePower Handling: 250 watts RMS\u003c\/li\u003e\n\u003cli\u003ePeak Power: 750 watts\u003c\/li\u003e\n\u003cli\u003eSuggested Power Range: 50-250 watts RMS\u003c\/li\u003e\n\u003cli\u003eFrequency Response: 22-200 Hz\u003c\/li\u003e\n\u003cli\u003eSensitivity: 87.9 dB\u003c\/li\u003e\n\u003cli\u003eCone: Polypropylene and mica \u003c\/li\u003e\n\u003cli\u003eSurround: Poly-foam \u003c\/li\u003e\n\u003cli\u003eMagnet Weight: 52 Oz.\u003c\/li\u003e\n\u003cli\u003eVoice Coil: 2\" (50.8mm)\u003c\/li\u003e\n\u003cli\u003eStamped steel frame\u003c\/li\u003e\n\u003cli\u003eTop-mount Mounting Depth: 5-5\/16\"\u003c\/li\u003e\n\u003cli\u003eSealed Box Volume: 1.09 cu. ft.\u003c\/li\u003e\n\u003cli\u003ePorted Box Volume: 1.91 cu. ft.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThiele-Small Parameters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSPL Sensitivity 1W\/1M: 87.9 dB\u003c\/li\u003e\n\u003cli\u003eRe DC Resistance: 3.7 Ohms\u003c\/li\u003e\n\u003cli\u003eLe Inductance: 2.38 mH\u003c\/li\u003e\n\u003cli\u003eFs Free Air Resonance: 30 Hz\u003c\/li\u003e\n\u003cli\u003eVas Equivalent Stiffness: 64.3L (2.27 cuft)\u003c\/li\u003e\n\u003cli\u003eQms Mechanical Q: 7.66\u003c\/li\u003e\n\u003cli\u003eQes Electrical Q: 0.53\u003c\/li\u003e\n\u003cli\u003eQts Total Q: 0.49\u003c\/li\u003e\n\u003cli\u003eSd Cone Ares: 452 sq cm\u003c\/li\u003e\n\u003cli\u003eXmax Linear Excursion: 10mm\u003c\/li\u003e\n\u003cli\u003eXmech Mechanical Travel: 52 mm\u003c\/li\u003e\n\u003c\/ul\u003e"}