SPL Comps, or even SQ Comps
Frequency depends on sub and port position. With my subs up, ports back position my peak ranges from 38hz to 47hz depending on temperature and humidity and how far I position the port from the back hatch.
My best score has been done at 42hz in 48 deg F overcast and slightly rainy weather.
http://i524.photobucket.com/albums/c...0/SANY0338.jpg
http://i524.photobucket.com/albums/c...0/SANY0339.jpg
http://i524.photobucket.com/albums/c...0/SANY0340.jpg
Backseat has been Removed against its will
http://i524.photobucket.com/albums/c...0/SANY0339.jpg
http://i524.photobucket.com/albums/c...0/SANY0340.jpg
Backseat has been Removed against its will


