2) KICKER 10C12D4 12" 800W Dual 4-Ohm Comp Car Audio Subwoofers Subs+Sealed Box 12" Comp 300 Watt Dual 4 Ohm Car Audio Subwoofer. Best-sounding, loudest bass for the buck. Dual 4 Ohm voice coil. Super-rigid, injection-molded cone with 360-degree back bracing. High-temp coil wire. Vented pole piece for heat dissipation. Strong steel basket with coil-cooling perimeter venting. Ribbed surround for strength at high excursion. Durable Spiralead tinsel leads. Tough, yellow double-stitching on surround Handy spring-loaded terminals. Model C12D4. Size (IN.,CM) 12, 30.0. Impedance (OHMS) 4 DVC. Max Rec Amplifier Power (WATTS PEAK/RMS)* 400/200. Sensitivity (dB 1w/1m) 88.3. Frequency Response (Hz) 27-500. Mounting Depth (IN.,CM) 5-7/8, 14.8. Mounting Cutout (IN.,CM) 11, 27.9. Dual 12" Sealed Subwoofer Enclosure. 3/4" USA Heavy Duty MDF Construction. Machine precision cut mounting holes. Top of the line Glue for extra durable adhesion. Designed, tested, and engineered to work with most of todays popular woofers. These enclosures are built with the quality additives needed to maximize the performance of any sound system. Type of Enclosure: Sealed. Enclosure Sub Size: Dual 12". Dimensions in Inches: 14 x 11.5 x 33.75. Top and Bottom Depth: 14". Mounting Depth: up to 12" (enough depth for any sub on the market). Gross Volume Per Sub (Measurement for the outer dimensions of the box): 1.55 Cubic Feet. Net Volume Per Sub (Measurement for the outer dimensions of the box less the thickness of the wood): 1.25 Cubic Feet 20 Drywall Wood Screws (Wood screws are the type of screws; the screws are actually made of metal). 20 Feet of 14 AWG Blue Speaker Wire. 4 Spade Terminals