Filter Filters Single Alpine Remove All Filters Price $50-$100 (2) Condition New (2) Size 10" (1) 12" (1) Alpine W12S4 Car Audio BassLine Series Sub Single 4 Ohm 500W Peak 12" Subwoofer $99.95 Alpine W10S4 Car Audio BassLine Series Sub Single 4 Ohm 500W Peak 10" Subwoofer $89.95