Vehicle: 2002 nissan frontier
Electrical System:1 batcap 4k (under hood) stock alt-0g to batt, autg pwr&G
Amplifier(s):1 powerbass 5k
Subwoofer(s):2 15 crossfire xs v2
Box: 15 cu ft, tuned to 32hz
Mic: termlab, dash mount
Song/Tone Played: 20-60hz sweep
db Result: 146.1 (windows up)...