ZV4 Sundown 4th Order
YOUR LINK HERE:
http://youtube.com/watch?v=Kdd8f--FaXY
2 15'' ZV4 subwoofers on a single SAZ4500.1D. The box is a 1:1 ratio 4th order bandpass box in a trunk of a 2009 Chevy Impala
Sundown Audio, Sundown, ZV4, AMP, Sub, Subwoofer, Audio, Bass, System, Flex, 4th order, bandpass, 15'', ZV415, SAZ-4500, Josh Petersen, Sound, Loud, Speakers, Team Sundown, Chevy, Impala, Chevrolet
#############################
