LAB 12C 12" Professional Series Speaker

Recommended for vented, sealed, and horn loaded, professional audio enclosures as a subwoofer. Also great as an automotive sub. Applications  Subwoofer | Pro Audio | Car Audio | Home Stereo | Home Theater Box Type: Sealed | Vented | Horn Loading SpecificationsDownload Spec Sheet Download Cab Design SPECIFICATION Nominal Basket Diameter 12", 305 mm Nominal Impedance* 4 Ω Power Rating* Program Power 1000 W Watts 500 W Resonance 23 Hz Usable Frequency Range 25 Hz - 0.1 kHz Sensitivity* 88.9 dB Magnet Weight 160 oz. Gap Height 0.375", 9.5 mm Voice Coil Diameter 2.5", 64 mm THIELE & SMALL PARAMETERS Resonant Frequency (fs) 23 Hz DC Resistance (Re) 3.11 Ω Coil Inductance (Le) 1.09m H Mechanical Q (Qms) 11.7 Electromagnetic Q (Qes) 0.34 Total Q (Qts) 0.33 Compliance Equivalent Volume (Vas) 128.31 liters / 4.53 cu.ft. Peak Diaphragm Displacement Volume (Vd) 659 cc Mechanical Compliance of Suspension (Cms) 0.36 mm/N BL Product (BL) 13.36 T-M Diaphragm Mass Inc. Airload (MMs) 136 grams Efficiency Bandwidth Product (EBP) 67 Maximum Linear Excursion (Xmax) 13 mm Surface Area of Cone (Sd) 506.7 cm2 Maximum Mechanical Limit (Xlim) 22 mm MOUNTING INFORMATION Recommended Enclosure Volume Sealed 28.32-118.93 liters / 1-4.2 cu.ft. Vented 39.64-141.59 liters / 1.4-5 cu.ft. Driver Volume Displaced 0.109 cu.ft. / 3.09 liters Overall Diameter 12.32", 312.9 mm Baffle Hole Diameter 11.04", 280.4 mm Front Sealing Gasket Yes Rear Sealing Gasket N/A Mounting Holes Diameter 0.26", 6.6mm Mounting Holes B.C.D. 11.77", 299mm Depth 6.44", 163.6 mm Net Weight 22 lbs, 9.98 kg Shipping Weight 23.8 lbs, 10.8 kgs MATERIALS OF CONSTRUCTION Coil Construction Copper voice coil Coil Former Polyimide former Magnet Composition Double stacked 80 oz. ferrite magnets Core Details Vented and extended core     Basket Materials 12-spoke die-cast aluminum basket Cone Composition Kevlar-reinforced paper cone Cone Edge Composition Foam cone edge Dust Cap Composition Dual inverted dust caps Frequency Response