Amazon.com: Kicker 44L7S84 Solobaric L7 8" Subwoofers Bundle - Dual 4-Ohm Voice Coils for wiring to a 1-ohm monoblock amplifier : Electronics
Amazon.com: Kicker Bundle Compatible With Universal Vehicle 44CWCD124 12" Dual 4Ohm 12" With 46CXA4001 800W Sub Amp AND 112VH 12" Sub Box : Electronics
Amazon.com: KICKER TRTP 12-inch (30cm) Thin Down Firing Subwoofer and Passive Radiator Enclosure, 2-Ohm, RoHS Compliant : Electronics