trd_4runnin
New member
I just installed subwoofers in the 4Runner this weekend. My Alpine head unit has a High Pass Filter option and when I go into it my choices are OFF, 80hz, 120hz, and 160hz. I have had it on all 3 and think it sounds best at 120hz but my question is, is this just personal preference or is one setting actually better for the system than the others? Thanks.