12-Inch Quad-Loaded Subwoofer Enclosure, 2400-Watt, 2-Ohm Final Impedance With 2,400-watts of RMS power handling, this computer-designed bass-head subwoofer system makes rattling your ride easier than ever! Four KICKER L7R 12-inch subs come pre-loaded in this enclosure. The port is flared perfectly and tuned to 31Hz for some serious bump - without the expense of a custom enclosure. This Kicker quad-sub box is made to take the pressure! Heavy, birch-veneer plywood construction and thick internal bracing keeps the enclosure stable, even under extreme SPL levels. Covered in durable black carpet and custom embroidered with the Kicker logo, the 47QL7R12 is pre-wired to a pair of two-Ohm terminals and 2400W of RMS power. Specifications Type QUAD Woofers/size [in, cm] 4 Solo-Baric L7R 12, 30 Impedance [Ohms] Dual 2-Ohm Terminals Recommended Amplifier Power (watts RMS) 2400 SENSITIVITY [dB 1w/1m] 98 Box Depth (in, mm): 28, 711 Box Height (in, mm): 20-1/4, 514 Box Width (in, mm): 35-7/8, 912 What's in the box? 1 47QL7R122, 1 enclosure hardware pack, 1 instruction manual, 2 KICKER stickers,1 47QL7R122, 1 massive sub enclosure, 1 enclosure mounting bracket kit,Customer Info Card w/link to product page (via QR Code).