What going on with my sub?????

Either I skimmed through the thread too fast or something but I didn't see anyone mention the SSF. My "real world" tuning is 27-28hz, and my subsonic is set to 25 and I still will bottom out on low 20's if I'm running full tilt.

 
Either I skimmed through the thread too fast or something but I didn't see anyone mention the SSF. My "real world" tuning is 27-28hz, and my subsonic is set to 25 and I still will bottom out on low 20's if I'm running full tilt.
i didn't set my amp a local car shop did. so for this bigger box tuned 3 hz lower i should change the settings? and how do i go about this?

 
i didn't set my amp a local car shop did. so for this bigger box tuned 3 hz lower i should change the settings? and how do i go about this?
Turn your subsonic filter up to like ~20hz, and then just do some testing on music. Turn the filter up a little bit (10-15 degrees or so) and test it out. If it's still bottoming out, then just repeat the process. You shouldn't have to turn up your subsonic filter to as far as what your tuning is. For example if you are tuned to 32hz you probably want to set it to around 25hz

 
Turn your subsonic filter up to like ~20hz, and then just do some testing on music. Turn the filter up a little bit (10-15 degrees or so) and test it out. If it's still bottoming out, then just repeat the process. You shouldn't have to turn up your subsonic filter to as far as what your tuning is. For example if you are tuned to 32hz you probably want to set it to around 25hz
ill try this. its just a B*itch to to tune everything cuz my apsm has all the tuning and everything on the bottom....

 
well i put in the extra on the port and it seams to have worked pretty well. I'm playing lows and they are sounding good. the port was a B*tch to get in the box tho... and doesn't look the prettiest and when i get another day i will go back and seal it up better, but for now wood glue some screws and some spay in window sealer had to do lol.

 
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