{"product_id":"spk-10s4","title":"AudioControl SPK-10S4 Spike Series 12″ Single 4-Ohm High-Performance Subwoofer – 400W RMS \/ 800W Peak","description":"\u003cp\u003eUpgrade your low end with the AudioControl SPK-10S4, a 12-inch sub rated 400W RMS (800W peak).\u003c\/p\u003e\u003ch3\u003eAt a glance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePower: 400W RMS (800W peak)\u003c\/li\u003e\n\u003cli\u003eSize: 12\"\u003c\/li\u003e\n\u003cli\u003eImpedance: Single 4 ohm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDetails\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eSpike Series 10-Inch Single 4-Ohm High-Performance Subwoofer\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eElevate your car audio experience with the Spike Series Subwoofers, engineered to deliver powerful bass and unparalleled sound quality. With over 45 years of expertise, AudioControl presents the Spike Series, designed to enhance any vehicle's sound system with versatility and durability.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eHigh Excursion Design for Ultra-Low Bass\u003c\/li\u003e \u003cli\u003eFiber Matrix Paper Cone with Mica Coating\u003c\/li\u003e \u003cli\u003e3-Layer High Temp Voice Coil Former\u003c\/li\u003e \u003cli\u003eDual Damping System for Linear Bass Reproduction\u003c\/li\u003e \u003cli\u003eDual Dust Cap System for Enclosure Compression Control\u003c\/li\u003e \u003cli\u003eEfficient Heavy-Duty Motor Design\u003c\/li\u003e \u003cli\u003eRemovable Subwoofer Grille Included\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003ePairings:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eA single Spike Series 4 ohm subwoofer pairs handsomely with the ACM-2.300 or ACX-300.2 amplifiers for conservative to moderate listeners. For more robust output levels, consider the LC-1.800.\u003c\/li\u003e \u003cli\u003eLC-5.1300 or D-5.1300 amplifiers provide ample power, with channel 5 being an excellent match.\u003c\/li\u003e \u003cli\u003eFor systems with two Spike Series 4 ohm subwoofers, LC-1.800 is recommended.\u003c\/li\u003e \u003cli\u003eConsult an expert for configurations with three or more subwoofers.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSpecifications (Thiele\/Small Parameters):\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eNominal Impedance (Z): 4 ohms\u003c\/li\u003e \u003cli\u003eDC Resistance (Re): 3.2 ohms\u003c\/li\u003e \u003cli\u003eResonance Frequency (Fs): 41.2638 Hz\u003c\/li\u003e \u003cli\u003ePiston Area (Sd): 0.0314 m2\u003c\/li\u003e \u003cli\u003eForce Factor (BL): 13.6742 T.m\u003c\/li\u003e \u003cli\u003eMechanical Q Factor (Qms): 4.83\u003c\/li\u003e \u003cli\u003eElectrical Q Factor (Qes): 0.6576\u003c\/li\u003e \u003cli\u003eTotal Q Factor (Qts): 0.5788\u003c\/li\u003e \u003cli\u003eSensitivity 1W\/M (SPL): 83.7199\u003c\/li\u003e \u003cli\u003eMechanical Compliance (Cms): 0.1004 mm\/N\u003c\/li\u003e \u003cli\u003eMoving Mass (Mms): 148.1991 g\u003c\/li\u003e \u003cli\u003eLinear Excursion (Xmax): 14 mm\u003c\/li\u003e \u003cli\u003eVolume Acoustic Compliance (Vas): 13.8342 Ltr\/0.4885 Cu ft\u003c\/li\u003e \u003cli\u003eReference Efficiency (NO.): 0.1419% RMS\u003c\/li\u003e \u003cli\u003ePower (Pe): 500 Watts\u003c\/li\u003e \u003cli\u003eFrequency Response: 20-200 Hz\u003c\/li\u003e \u003cli\u003eVoice Coil Diameter: 2.5 in\/63.5 mm\u003c\/li\u003e \u003cli\u003eDisplacement: 0.0626 cu ft\/1.771 Ltr\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIn the Box:\u003c\/strong\u003e SPK-10S4 Subwoofer, Manual, Warranty\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eOverall Dimensions: 10.748in\/ 273 mm\u003c\/li\u003e \u003cli\u003eCut Out Diameter: 9.25 in\/ 234 mm\u003c\/li\u003e \u003cli\u003eMounting Depth: 5.32in\/ 135 mm\u003c\/li\u003e \u003cli\u003eMounting Height (w\/o Grille): 0.59in \/ 15mm\u003c\/li\u003e \u003cli\u003eMounting Height (w\/ Grille): 1.30in \/ 33mm\u003c\/li\u003e \u003cli\u003eMotor Diameter (w\/ Cover): 6.41in \/ 163mm\u003c\/li\u003e \u003cli\u003eWeight: 12 lbs\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003ePorted Enclosure:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eExternal Dimensions: 24.00″ W × 13.00″H × 11.25″D\u003c\/li\u003e \u003cli\u003eNet Internal Volume: 1.01 ft3\u003c\/li\u003e \u003cli\u003eTotal Internal Volume: 1.36 ft3\u003c\/li\u003e \u003cli\u003eGross External Volume: 2.03 ft3\u003c\/li\u003e \u003cli\u003eMaterial Thickness: 0.75″\u003c\/li\u003e \u003cli\u003eTuning Frequency: 37 Hz\u003c\/li\u003e \u003cli\u003ePort Area: 17.25 inch2\u003c\/li\u003e \u003cli\u003ePort Inlet: 1.50″W× 11.50″H\u003c\/li\u003e \u003cli\u003ePort Length: 28.50″\u003c\/li\u003e \u003cli\u003eF3 (Hz): 30\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSealed Enclosure:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eExternal Dimensions: 20.00″W × 13.00″H × 11.00″D\u003c\/li\u003e \u003cli\u003eNet Internal Volume: 1.11 ft3\u003c\/li\u003e \u003cli\u003eTotal Internal Volume: 1.17 ft3\u003c\/li\u003e \u003cli\u003eGross External Volume: 1.66 ft3\u003c\/li\u003e \u003cli\u003eMaterial Thickness: 0.75″\u003c\/li\u003e \u003cli\u003eF3 (Hz): 45.96\u003c\/li\u003e \u003cli\u003eQtc: 0.705\u003c\/li\u003e \u003cli\u003e\u003cem\u003e*Note: Enclosure size recommendations exclude driver and\/or port displacement\u003c\/em\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cbr\u003e\u003cbr\u003eSKU: AC-SPK10S4\u003cbr\u003eUPC: 850038647360\u003c\/p\u003e\u003ch3\u003eWhy buy from Stereo-Needs\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFree shipping on every order\u003c\/li\u003e\n\u003cli\u003eFamily business with 20+ years selling car audio and 429,000+ items sold on eBay (99.9% positive)\u003c\/li\u003e\n\u003cli\u003eNot sure it fits your vehicle or system? Call or text 951-497-3497 before you order\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AudioControl","offers":[{"title":"Default Title","offer_id":67692911820909,"sku":"AC-SPK10S4","price":219.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0841\/0657\/5981\/files\/spk-10s-right_f11987d8-cd82-4502-b3ac-b7be863a9ec3.jpg?v=1791611855","url":"https:\/\/stereoneeds.com\/products\/spk-10s4","provider":"Stereo-Needs","version":"1.0","type":"link"}