some of u may remeber when my subs were producing little bass and tilting the box fixed it, however i had no idea how muhc bass was actually being blocked. the manual for my subs said to tune em to 350hz so they always have been, my friend just got a sub and said the place that installed tuned it to 120, i thought that odd, and he was pushing baout the amperage with much more bass, granted he has a 12 and it'* better brand than mine, but still, so i tuned mine down to 120 and BAM like 3x more bass, now i need to get dynamat.

Tune them how? Port length?

350 Hz seems a bit high.. what kind of subs are they and what do you want them to sound like?? what kind of music, etc?

Are you talking about the High Pass Cutoff on the amp?? If not and you are tuning the box both #'* seem high - you sure it wasn't 35 Hz they wanted them at?

you tuned the ports to 120 hz? sounds like midbass to me... 40 or so sounds more apropriate, is there something you are not telling us? :o
blazin beat me to the post

sorry, shudve speciffied, the LPF on the amp

I'm sort of an audio newbie, and even I thought that 350 Hz was high.

i knew it was high but i figured best to follow the manual...

a sub shouldnt play over 80hz


its not that they arent designed to, its that 20-80 is sub-bass, and 80-300 is midbass

i agree i would not set the high end over 100 and i use 80. as far as tuning the box you do it with port length and it should be tuned around 32 in most cases for a starting point.