AudioControl SPC-12S4 Space Series 12″ Single 4-Ohm Low-Profile Subwoofer – 400W RMS / 800W Peak

Space Series 12-Inch Single 4-Ohm Low Profile Subwoofer Enhance 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. Features: Low-Profile Shallow Mount Subwoofer Fiber Matrix Injection Molded Polypropylene Cone Weather-Resistant Design 3-Layer High Temp Voice Coil Former Optimal Thermal Efficiency Wrap-Sealed Rubber Gasket to Protect Enclosure Interior Removable Subwoofer Grille Included Pairings: A 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. LC-5.1300 or D-5.1300 amplifiers deliver rich, robust output, with channel 5 being an excellent match. For systems with two Space Series 4 ohm subwoofers, LC-1.800 is recommended. Consult an expert for configurations with three or more subwoofers. Specifications (Thiele/Small Parameters): Nominal Impedance (Z): 4 ohms DC Resistance (Re): 3.2 ohms Resonance Frequency (Fs): 30.7061 Hz Piston Area (Sd): 0.0511 m2 Force Factor (BL): 12.4924 T.m Mechanical Q Factor (Qms): 3.7494 Electrical Q Factor (Qes): 0.5764 Total Q Factor (Qts): 0.4996 Sensitivity 1W/M (SPL): 87.3024 Mechanical Compliance (Cms): 0.1844 mm/N Moving Mass (Mms): 145.7101 g Linear Excursion (Xmax): 9 mm Volume Acoustic Compliance (Vas): 67.1494 Ltr/2.371348 cu ft Reference Efficiency (NO.): 0.32% RMS Power (Pe): 400 Watts Frequency Response: 20-250 Hz Voice Coil Diameter: 2.5 in/63.5 mm Displacement: 0.0619 cu ft/1.752 Ltr UPC: 850038647407 In the Box: SPC-12S2 Subwoofer, Manual Dimensions: Overall Dimensions: 12.37 in/316 mm Cut Out Diameter: 11.10 in/282 mm Mounting Depth: 3.94 in/100 mm Mounting Height (w/o Grille): 0.71 in / 18mm Mounting Height (w/ Grille): 1.42 in/36mm Weight: 12 lbs Ported Enclosure: External Dimensions: 24.00″ W × 15.00″H × 15.00″D Net Internal Volume: 2.02 ft3 Total Internal Volume: 2.28 ft3 Gross External Volume: 3.01 ft3 Material Thickness: 0.75″ Tuning Frequency: 40 Hz Port Area: 27.00 inch2 Port Inlet: 2.00″W× 13.50″H Port Length: 16.25″ F3 (Hz): 40 Sealed Enclosure: External Dimensions: 32″ W × 15.00″H × 7.00″D Net Internal Volume: 1.25 ft3 Total Internal Volume: 1.31 ft3 Gross External Volume: 1.94 ft3 Material Thickness: 0.75″ F3 (Hz): 51 Qtc: 0.765 (Note: Enclosure size recommendations exclude driver and/or port displacement)