Nakamichi Pure Sound 6-Inch x 9-Inch 500-Watt Max 4-Way Coaxial Speakers in the Mobile Audio department at Lowes.com
Pioneer® Ts-b400pro Pro Series 4" 500-watt Bullet Tweeter - Walmart.com
BOSS Audio Systems BE694 6 x 9” Car Speakers, 500 Watts Full Range Sold in Pairs - Walmart.com
Sound Ordnance/Pioneer 500-Watt Bass Package Includes Pioneer GM-D9601 amplifier and Sound Ordnance bandpass enclosure with two 12" subwoofers at Crutchfield
Amazon.com: Pioneer TS-G1320S 500 Watts Max Power 5-1/4" 3-Way G-Series Coaxial Full Range Car Audio Stereo Speakers : Electronics