60W-120W 5.25 inch speaker high fidelity subwoofer 4 ohm 8 ohm 3 frequency i speaker
Subwoofer - Wikipedia
Amazon.com: Gravity 2X 15 Inch 2400 Watt Car Audio Subwoofer w/ 2 Ohm DVC 15 in. Sub - Pair - Feature Dual Voice Coil, Thick Magnet, Design for Car, ATV, Van, High Performance Car Show : Electronics
REALISTIC 40-1025 12" 30 CM WOOFER WITH POLYPROPYLENE CONE NEW OPEN BOX | eBay
Dayton Audio RSS315HF-4 12" Reference Series HF Subwoofer 4 Ohm
Eton GRAPHIT 8″ Subwoofer
Epique E150HE-44 5-1/2" DVC MMAG Extended Range Subwoofer 4 Ohm per Coil
Dayton Audio Epique E180HE-44 7" DVC MMAG Extended Range Subwoofer 4 Ohm per Coil - Yahoo Shopping
FOCAL POLYGLASS 40 V1 400 W RMS 4 OHM 16" 40 CM SUBWOOFER
Alpine W10S4, Bass Series Single 4 Ohm Voice Coil 10" Subwoofer - 750W – AVLeaderz