i have a 95 f-150 extended cab no sound dampning
i also have an aq hdc3 18''
i built an enclosure 6cu. in the backseat sub facing up two ports facing forward one on each side of the box 116 sq. in. of port tuned to 45 hrtz for spl
it just doesnt seem loud enough are my box designs wrong?
is the sub/ports facing the wrong direction to get loud in my truck?
i want maximum spl out of this sub but the box just doesnt seem right