BAS8 - 8" 400 Watts RMS Class D Powered Subwoofer in Ported Enclosure,
Amazon.com: AUDIOPIPE CSL-6923R 6 x 9 Inch 400 Watt 3 Way Redline Car Audio Music Speakers with 4 Ohm Impedance and 35 to 21 Kilohertz Frequency Response, Pair : Electronics
6.5 in. 4-Way 400-Watt Car Coaxial Speakers Stereo P654C-WMT - The Home Depot
Cerwin-Vega Mobile Vega Series 2-Way Coaxial Speakers (6.5", 400 Watts max) in the Mobile Audio department at Lowes.com
Audio System X10 10" 400 Watt Single-4-Ohm Kevlar Car Audio Subwoofer/ - Showtime Electronics
Mb Quart Ps1-316 Premium 6.5 Inch 400 Watt 4 Ohms 3 Way Component Network Control Mobile Speaker Car Audio Systems, Grills Included, Black (2 Pack) : Target
Mb Quart Ps1-316 Premium 6.5 Inch 400 Watt 4 Ohms 3 Way Component Network Control Mobile Speaker Car Audio System, 2 Speakers, Grills Included, Black : Target