Filter Filters Alpine Remove All Filters Price Under $50 (1) $50-$100 (4) $100-$500 (365) $500 and above (221) Condition New (591) Size 10" (15) 12" (15) 8" (7) 6.5" (2) Voice Coils 2 Ohm (1) Dual (16) Single (3) Speaker Type 1-way (6) Alpine S2-W12D4 Car Audio Type-S Series Dual 4-Ohm 12 Inch Subwoofer $186.95 Alpine S2-W12D2 Car Audio Type-S Series Dual 2-Ohm 12 Inch Subwoofer $186.95 Alpine S2-W8D4 S-Series 300W RMS Dual 4-Ohm Subwoofer for Car Audio $144.45 Alpine R2-W10D4 10" Subwoofer R-Series Dual 4 Ohm 750 RMS Includes HA-A400.1... $332.99 Alpine S2-W10D2 Car Audio Type-S Series Dual 2-Ohm 10 Inch Subwoofer $169.95 Alpine S2-W10D4 Car Audio Type-S Series Dual 4-Ohm 10 Inch Subwoofer $169.95 Alpine R2-W10D2 Next-Generation R-Series Dual 2-Ohm 750 RMS Watts 10" Subwoofer $329.95 Alpine R2-W10D4 Next-Generation R-Series Dual 4-Ohm 750 RMS Watts 10" Subwoofer $329.95 Alpine R2-W12D2 Next-Generation R-Series Dual 2-Ohm 750 RMS Watts 12" Subwoofer $379.95 Alpine S-W12D4 Car Audio Type S Series Sub Dual 4 Ohm 1800W Peak 12" Subwoofer $199.95 Alpine S-W10D2 Car Audio Type S Series Sub Dual 2 Ohm 1200W Peak 10" Subwoofer $179.95 Alpine R2-W8D2 Next-Generation R-Series Dual 2-Ohm 350 RMS Watts 8" Subwoofer $249.95 Alpine S-W8D2 Car Audio Type S Series Sub Dual 2 Ohm 600W Peak 8" Subwoofer $124.95 Alpine R2-W12D4 Next-Generation R-Series Dual 4-Ohm 750 RMS Watts 12" Subwoofer $379.95 Alpine R2-W8D4 Next-Generation R-Series Dual 4-Ohm 350 RMS Watts 8" Subwoofer $249.95 Alpine S-W10D4 Car Audio Type S Series Sub Dual 4 Ohm 1200W Peak 10" Subwoofer $179.95 Alpine S-W12D2 Car Audio Type S Series Sub Dual 2 Ohm 1200W Peak 12" Subwoofer $199.95 (1) Alpine W12S4 Car Audio BassLine Series Sub Single 4 Ohm 500W Peak 12" Subwoofer $99.95 Alpine SWT-10S2 Car Audio SWT Series Sub Single 2 Ohm 700W Shallow Subwoofer $186.95 Alpine SWT-10S4 Car Audio SWT Series Sub Single 4 Ohm 700W Shallow Subwoofer $186.95 Alpine W10S4 Car Audio BassLine Series Sub Single 4 Ohm 500W Peak 10" Subwoofer $89.95 Alpine R2-W12D2 Next Gen 12" Sub R-Series Dual 2-Ohm 750 RMS Includes... $379.95 Alpine R2-W8D2 Next Gen 8" Sub R-Series Dual 2-Ohm 350 RMS Includes HA-A400.1... $249.95 Alpine S-SB10V Single 10" Alpine Halo S-Series Preloaded Subwoofer Enclosure... $399.95 123456...25