Amazon.com: Audiopipe 6" Woofer 150W Max 4 Ohm DVC Sold Each : Electronics
Amazon.com: Gravity Audio 1200W Professional 12" Power Car Subwoofer 4 OHM IMPED Dual Voice Coil GR-12PW : Electronics
Amazon.com: Planet Audio AC10D Anarchy Series 10 Inch Car Subwoofer - 1500 Watts Max, Dual 4 Ohm Voice Coil, Sold Individually, for Truck, Boxes, Enclosures, Use with Amplifier : Electronics
Amazon.com: Gravity Warzone WZ12D4 12 Inch 1500 Watt Max Power Elite Car Audio Shallow Subwoofer 4 Ohm DVC - Dual Voice Coil Stereo Competition Grade Sub - 2 Subwoofers : Electronics
Amazon.com: 5Core 8" Inch Subwoofer Replacement DJ Speaker Car Loudspeaker 100W 4 Ohm WF 8110G : Electronics
Amazon.com: Pyle Car Vehicle Subwoofer Audio Speaker - 10 Inch Blue Injection Molded Cone, Blue Chrome-Plated Plastic Basket, Dual Voice Coil 4 Ohm Impedance, 1000W Power For Vehicle Stereo Sound System PLBW104 :
Amazon.com: MTX TN10-04 Audio 10 inch 300 Watt Car Audio 84.9 dB 4 OHM Single Voice Coil Subwoofer (4 Pack) : Electronics
DS18 SLC12S Car Subwoofer Audio Speaker - 12" in. Paper Glass Fiber Cone, Black Steel Basket, Single Voice Coil 4 Ohm Impedance, 500W MAX Power and Foam Surround for Vehicle Stereo Sound System
Amazon.com: KICKER Comp 12" (30cm) Subwoofer in Down Firing Encl, 4-Ohm; RoHS Compliant : Electronics
Amazon.com: BOSS Audio Systems R1100M Riot Series Car Audio Subwoofer Amplifier - 1100 High Output, Monoblock, Class A/B, 2/4 Ohm Stable, Low/High Level Inputs, Low Pass Crossover, Mosfet Power Supply, Stereo :
Rockville 1500w 15" Raw DJ Subwoofer 4 Ohm Sub Woofer 70OZ Magnet, 15 inch (RVW1500P4)
Amazon.com: Lanzar 10in Car Subwoofer Speaker Non-Pressed Paper Cone, Stamped Plastic Basket, Dual 4 Ohm Impedance for Vehicle Audio Stereo Sound System MAXP104D : Everything Else
Harmony Audio 2X HA-C124 Car Competition 12" Sub 2200W Dual 4 Ohm Subwoofer New : Electronics - Amazon.com