Kicker 44L7S122 12" Subwoofer with Dual 2-ohm Voice Coils
Dual Voice Coils: For increased system flexibility, the woofer has two 2Ω voice coils. When the voice coils are wired in parallel, the woofer presents a 1Ω load; when wired in series, the woofer presents a 4Ω load.