Alpine R2-W12D2 12" 750w RMS Car Subwoofer Sub+(2) Stereo Bluetooth Speakers - Rockville Audio
Alpine R-W10D4 Type R 10" Dual 4 OHM Subwoofer with GTR-601 Mono Subwoofer Amplifier 600 watts RMS x 1 at 2 ohms - Creative Audio
Alpine R2-W8D2 8” R-Series 350W RMS Subwoofer Car Sub R2W8D2+Bluetooth Speaker - Rockville Audio
Universal Car Stereo Slotted S Port Single 10" Alpine Bundle Type R R-W10D4 Sub Box Enclosure with Harmony HA-A800.1 Amplifier & 4GA Amp Kit - Walmart.com