Amazon.com: Pyle 8 Inch 1600 Watt DVC 4 Ohm Car Audio Subwoofer Speaker Set with 40 Oz Magnet and 1.5 Inch 4 Layer Voice Coil, Black (2 Pack) : Electronics
Replacement 8" Woofer Speaker 13 Oz Magnet 500W PMPO Car Home Audio STEREO 4 Ohm - Walmart.com
5 Core 18 Inch Subwoofer Speaker 1Pc 1000W PMPO Raw Full Range Speaker 500W RMS 18"
Amazon.com: Pyle Car Eight Way Speaker System - Pro 6 x 9 Inch 500W 4 Ohm Mid Tweeter Component Audio Sound Speakers For Car Stereo w/ 120 Oz Magnet Structure, 3.55” Mount