Alpine Type-S SWS-10D2 - Subwoofer driver - for car - 500 Watt - 10" - black - Walmart.com
Alpine S-W12D4 Car Subwoofer1800W Max, 600W RMS 12" Type-S Series Dual 4 Ohm Car Subwoofer - Walmart.com
Alpine S-W12D4 12" Type S Car Audio Subwoofer with Rearfire Sealed Uni – absoluteusa
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Alpine Type-S SWS-12D4 12" 1500 Watt Dual 4-Ohm Car Audio Subwoofer Sub SWS12D4 | Audio Savings
Amazon.com: Universal Car Stereo Vented Port Single 12" Alpine S-W12D4 Type S Car Audio Subwoofer Custom Sub Box Enclosure Package New Without Amp : Electronics
Alpine SWS-1043D Type-S 10" subwoofer with dual 4-ohm voice coils at Crutchfield
Alpine (2) S-W12D2 Car Audio Type S Series Sub 1200W Peak 12" Subwoofer Bundle with Harmony HA-A800.1 Amplifier & Amp Kit | HA-SUBPACK11