Amazon.com: 5 CORE 1550 Watt 12 Inch RAW DJ Speaker PA Subwoofer Replacement 8 Ohm Sub Woofer, 4” Voice Coil Loudspeaker Woofer Voice Coil, Heavy Bass FR 12155 : Electronics
Amazon.com: DS18 SLC-8S Subwoofer in Black - 8-Inch Speaker, 400W Max Power, 200W RMS Power, Aluminum 4 Layer Voice Coil, Black Steel Frame, SVC, 4 Ohm Impedance, Ferrite Magnet (1 Speaker) (SLC8S) : Electronics
Amazon.com: Pack of 2 Full Range Bookshelf Speaker, 3 Inch 8 Ohm Anti-Magnetic HiFi Tweeter Wooden Enclosure Home Audio Woofer Multimedia Speakers (8Ω) : Electronics
Amazon.com: CT Sounds STRATO-8-D4 1200 Watts Max 8 Inch Car Subwoofer Dual 4 Ohm : Electronics
Amazon.com: Skar Audio FSX8-4 8" 350 Watt 4 Ohm Pro Audio Midrange Loudspeaker, Each : Electronics
Amazon.com: CES 3.5" GM Replacement Full Range Speaker 8 OHMS @ 10 WATTS : Electronics
Amazon.com: Goldwood Sound, Inc. Stage Subwoofer, OEM 15" Woofers 250 Watts Each 8ohm Replacement 2 Speaker Set (GW-215/8-2) : Electronics
Amazon.com: Pyle 6.5 Inch Mid Bass Woofer Sound Speaker System - Pro Loud Range Audio 300 Watt Peak Power w/ 4 Ohm Impedance and 60-20KHz Frequency Response for Car Component Stereo PLG64,Yellow : Electronics