Alpine W10S4 10-inch Single 4 Ohm Subwoofer

Alpine W12S4 12-inch Single 4 Ohm Subwoofer

Comp 12-inch (30cm) Subwoofer, 4-Ohm, RoHS Compliant

Comp 10-inch (25cm) Subwoofer, 4-Ohm, RoHS Compliant

Alpine R2-W10D2 Next-Gen 10" R-Series Subwoofer Dual 2-Ohm with KTE-10G.3 Grill

Alpine R2-W10D4 Next-Gen 10" R-Series Subwoofer Dual 4-Ohm with KTE-10G.3 Grill

Alpine (2) R2-W8D2 Next-Gen 8" R-Series Subwoofer Dual 2-Ohm with KTE-8G.3 Grill

Alpine Two R2-W10D2 Next-Gen 10" R-Series Subwoofers Dual 2-Ohm with Two KTE-10G.3 Grill

Kicker Comp 15-inch (38cm) Subwoofer, 4-Ohm, RoHS Compliant

2) MB Quart DS1-304 800 Watt 12 Inch Slim Shallow Subwoofers Car/Truck DVC Subs

Alpine RS-W10D4 10-inch R-Series Shallow Subwoofer with Dual 4-Ohm Voice Coils

Alpine (2) R2-W8D4 Next-Gen 8" R-Series Subwoofer Dual 4-Ohm with KTE-8G.3 Grill

Alpine R2-W8D4 Next-Gen 8" R-Series Subwoofer Dual 4-Ohm with KTE-8G.3 Grill

Alpine RS-W12D4 12-inch R-Series Shallow Subwoofer with Dual 4-Ohm Voice Coils

Alpine RS-W10D2 10-inch R-Series Shallow Subwoofer with Dual 2-Ohm Voice Coils

Kicker 50DCWC122 Dual CompC 12-inch Subwoofers in Vented Enclosure, 2-Ohm

Kicker 50DCWC102 Dual CompC 10-inch Subwoofers in Vented Enclosure, 2-Ohm

Alpine 2-R2-W10D2 Next-Generation 10" R-Series Subwoofers Dual 2-Ohm with 2-KTE-10G.3 Grills

Alpine Two R2-W10D4 Next-Gen 10" R-Series Subwoofers Dual 4-Ohm with Two KTE-10G.3 Grills

Alpine S2-A60M S-Series Class-D Mono Subwoofer Amp & (2) W12S4 12-Inch Bass Subwoofer Bundle

Alpine S2-A60M S-Series Class-D Mono Subwoofer Amp & RUX-KNOB.2, (2) W10S4 10-Inch Bass Subwoofer Bundle

Comp 10-inch (25cm) Subwoofer, 4-Ohm, RoHS Compliant bundle

Alpine RS-W12D2 12-inch R-Series Shallow Subwoofer with Dual 2-Ohm Voice Coils

Alpine 2-R2-W10D4 Next-Generation 10" R-Series Subwoofers Dual 4-Ohm with 2-KTE-10G.3 Grills