{"product_id":"ac-spc12s4","title":"AudioControl SPC-12S4 Space Series 12″ Single 4-Ohm Low-Profile Subwoofer – 400W RMS \/ 800W Peak","description":"\u003cp\u003eHit harder with the AudioControl SPC-12S4, a 12-inch single 4-ohm subwoofer handling 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\u003eSpace Series 12-Inch Single 4-Ohm Low Profile Subwoofer\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eEnhance your vehicle's audio system with the Space Series Subwoofers, delivering powerful bass in a sleek, slim design. These subwoofers are engineered for maximum low-frequency output in shallow spaces, ensuring deep, rich bass with weather-resistant durability.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eLow-Profile Shallow Mount Subwoofer\u003c\/li\u003e \u003cli\u003eFiber Matrix Injection Molded Polypropylene Cone\u003c\/li\u003e \u003cli\u003eWeather-Resistant Design\u003c\/li\u003e \u003cli\u003e3-Layer High Temp Voice Coil Former\u003c\/li\u003e \u003cli\u003eOptimal Thermal Efficiency\u003c\/li\u003e \u003cli\u003eWrap-Sealed Rubber Gasket to Protect Enclosure Interior\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 Space Series 4 ohm subwoofer pairs fabulously with the ACM-2.300 or ACX-300.2 amplifiers for conservative to moderate listeners. For higher output levels, consider the LC-1.800.\u003c\/li\u003e \u003cli\u003eLC-5.1300 or D-5.1300 amplifiers deliver rich, robust output, with channel 5 being an excellent match.\u003c\/li\u003e \u003cli\u003eFor systems with two Space 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): 30.7061 Hz\u003c\/li\u003e \u003cli\u003ePiston Area (Sd): 0.0511 m2\u003c\/li\u003e \u003cli\u003eForce Factor (BL): 12.4924 T.m\u003c\/li\u003e \u003cli\u003eMechanical Q Factor (Qms): 3.7494\u003c\/li\u003e \u003cli\u003eElectrical Q Factor (Qes): 0.5764\u003c\/li\u003e \u003cli\u003eTotal Q Factor (Qts): 0.4996\u003c\/li\u003e \u003cli\u003eSensitivity 1W\/M (SPL): 87.3024\u003c\/li\u003e \u003cli\u003eMechanical Compliance (Cms): 0.1844 mm\/N\u003c\/li\u003e \u003cli\u003eMoving Mass (Mms): 145.7101 g\u003c\/li\u003e \u003cli\u003eLinear Excursion (Xmax): 9 mm\u003c\/li\u003e \u003cli\u003eVolume Acoustic Compliance (Vas): 67.1494 Ltr\/2.371348 cu ft\u003c\/li\u003e \u003cli\u003eReference Efficiency (NO.): 0.32% RMS\u003c\/li\u003e \u003cli\u003ePower (Pe): 400 Watts\u003c\/li\u003e \u003cli\u003eFrequency Response: 20-250 Hz\u003c\/li\u003e \u003cli\u003eVoice Coil Diameter: 2.5 in\/63.5 mm\u003c\/li\u003e \u003cli\u003eDisplacement: 0.0619 cu ft\/1.752 Ltr\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIn the Box:\u003c\/strong\u003e SPC-12S2 Subwoofer, Manual\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eOverall Dimensions: 12.37 in\/316 mm\u003c\/li\u003e \u003cli\u003eCut Out Diameter: 11.10 in\/282 mm\u003c\/li\u003e \u003cli\u003eMounting Depth: 3.94 in\/100 mm\u003c\/li\u003e \u003cli\u003eMounting Height (w\/o Grille): 0.71 in \/ 18mm\u003c\/li\u003e \u003cli\u003eMounting Height (w\/ Grille): 1.42 in\/36mm\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 × 15.00″H × 15.00″D\u003c\/li\u003e \u003cli\u003eNet Internal Volume: 2.02 ft3\u003c\/li\u003e \u003cli\u003eTotal Internal Volume: 2.28 ft3\u003c\/li\u003e \u003cli\u003eGross External Volume: 3.01 ft3\u003c\/li\u003e \u003cli\u003eMaterial Thickness: 0.75″\u003c\/li\u003e \u003cli\u003eTuning Frequency: 40 Hz\u003c\/li\u003e \u003cli\u003ePort Area: 27.00 inch2\u003c\/li\u003e \u003cli\u003ePort Inlet: 2.00″W× 13.50″H\u003c\/li\u003e \u003cli\u003ePort Length: 16.25″\u003c\/li\u003e \u003cli\u003eF3 (Hz): 40\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSealed Enclosure:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eExternal Dimensions: 32″ W × 15.00″H × 7.00″D\u003c\/li\u003e \u003cli\u003eNet Internal Volume: 1.25 ft3\u003c\/li\u003e \u003cli\u003eTotal Internal Volume: 1.31 ft3\u003c\/li\u003e \u003cli\u003eGross External Volume: 1.94 ft3\u003c\/li\u003e \u003cli\u003eMaterial Thickness: 0.75″\u003c\/li\u003e \u003cli\u003eF3 (Hz): 51\u003c\/li\u003e \u003cli\u003eQtc: 0.765\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\u003eSKU: AC-SPC12S4\u003cbr\u003eUPC: 850038647407\u003cbr\u003e\u003cbr\u003e\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":67692908019821,"sku":"AC-SPC12S4","price":249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0841\/0657\/5981\/files\/spc-12s-front_999b956d-2398-4343-9a10-e4dd019b5cbc.jpg?v=1791611773","url":"https:\/\/stereoneeds.com\/products\/ac-spc12s4","provider":"Stereo-Needs","version":"1.0","type":"link"}