Package: (2) Kicker 40CWS154 CompS 15" 4-Ohm SVC Car Subwoofers Totaling 2400 Watt Peak /1200 Watt RMS + Rockville RD15 Dual 15&rdquo; 2.1 cu.ft. Sealed Subwoofer Enclosure With Grade A 3/4" MDF + Dual Enclosure Wire Kit With 14 Gauge Speaker Wire + Screws + Spade Terminals CompS Car Subwoofer. Power Rating: 1200 Watts Peak/600 Watts RMS. Impedance: 4-Ohms SVC. World-famous, hard-hitting bass performance. Renowned KICKER power and durability. Excellent for a sealed or vented enclosure, or in a freeair application. Quad Venting includes vertical and horizontal slots under the cone, and venting in the pole piece Rip-resistant, large-diameter spider with high-strength Spiralead technology. 1/4-inch heavy-duty spade connections. Size (IN.,CM) 15, 38.0. Sensitivity (dB 1w/1m) 90.3. Frequency Response (Hz) 25-500. Mounting Depth (IN.,CM) 7, 17.7. Mounting Cutout (IN.,CM) 13-3/4, 35 Dual 15" 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 15". Dimensions in Inches: 16.75" L x 36" W x 16.25 H". Top and Bottom Depth: 16.75". Mounting Depth: up to 15.5" (enough depth for any sub on the market). Gross Volume Per Sub (Measurement for the outer dimensions of the box): 2.7 Cubic Feet. Net Volume Per Sub (Measurement for the outer dimensions of the box less the thickness of the wood): 2.1 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