belva 1000 watt complete car subwoofer package includes two (2) 10-inch subwoofers in ported box, monoblock amplifier, amp wire kit - Newegg.com
Amazon.com: BOSS Audio Systems MTX TNP212D2 12 Inch 1200W Dual Car Subwoofer Audio, Sub Box, and Amplifier Bundle KIT2 Amplifier Installation Wiring Kit : Electronics
DS18 ZR112LD-PKG Bass Package 12" Subwoofer In a Ported Box With Ampli