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 - Walmart.com
NEW 5.25" SubWoofer Bass Speaker.4ohm Home Car Audio Woofer.5-1/4".6" frame | eBay
SWS-6.5X Shallow Woofer - Earthquake Sound Shop
TROPO-6.5 - 400 Watt 6.5 Inch Car Subwoofer - CT Sounds – CT SOUNDS