Amazon.com: Pyramid 12 Inch Car Subwoofer Speaker - 500 Watt High Powered Car Audio Sound Component Speaker System w/ 1.5 Inch Kapton Bobbin Voice Coil, 8 Ohm, 25 oz Magnet, Cloth Edge
DS18 EXL-SQ6.5CX 6.5" 2-Way Component Car Speaker System 500 Watts 4-Ohm
AS-2108BT: 500 Watt Active 8” Bluetooth® Loudspeaker
Pyle10-Inch Carpeted Subwoofer Tube Speaker 500-Watt High Power Car Audio Sub Bass Enclosure System - Walmart.com
Amazon.com: HYANKA 6.5 Car Speakers, Full Range Stereo 500 Watt Max 2-Way Coaxial Car Audio Speakers, Professional 6.5 door speakers, Sound Stereo and no Distortion, Suitable for Cars, Trucks, and More. (1 Pair) : Electronics