Amazon.com: Harman Kardon HKTS-15 5.1 High-Performance, 6-Piece Home Theater Speaker System (Black Gloss) (Discontinued by Manufacturer) : Electronics
5 CORE 6" Inch Subwoofer Car Audio 900W Peak Power Sub Woofer Pair Loudspeaker Wide Range High Power Bass Surround Sound Stereo 4 Ohm, 90mm Magnet Car Speakers with PP Cone Red,
Amazon.com: Rockville (6) HC85 8" Inch 700 Watt in-Ceiling Home Theater Speakers 8 Ohm : Electronics
Amazon.com: Audiopipe TSCVR6 6 Woofer 150w Max 4 Ohm Dvc Sold Each : Electronics
Amazon.com: 6.5" FULL RANGE SPEAKERS 30 WATTS @ 6 OHMS BUTYL RUBBER SURROUND : Electronics
5 CORE 6" Inch Subwoofer Car Audio 700W Peak Power Sub Woofer Loudspeaker Wide Range High Power Bass Surround Sound Stereo 4 Ohm, 72 mm Magnet Car Speakers WF 672 (1 Piece) - Walmart.com
2Pcs 6.5Inch Portable Audio Car Speakers 4 8 Ohm 60W Full Range Music Speaker DIY HIFI Home Theater Sound System Surround Sound
Amazon.com: Pyle 6.5" Three-Way Sound Speaker System - 180 W RMS/360W Power Handling w/ 4 Ohm Impedance and 3/4'' Piezo Tweeter for Car Component Stereo, Round Shaped Pro Full Range Triaxial Loud
Speaker Impedance Rating Explained | AV Gadgets
Goldwood Dual Voice Coil 10 in. Woofer 220-Watt 6 ohm Replacement Speaker GW-410D - The Home Depot