I have a ssa 15" xcon in a 4.0CF box tuned to 29hz in the back of my wagon. Its hooked up to a hifonics 1610d amp which is rated at 1600rms at 1-ohm at 14.4v. I want any advice for adjusting this so my sub stops bottoming out on deep songs like bass i love you. I have tried the sub-bass filter but if i turn it up anymore those deep songs lose the deep bass that it can hit fine without bottoming out. its those notes below 25hz that bottom it out, but the sub-bass filter only has a 12db slope and it lets to much in. So what do I do? I don't want to wreck my xcon.

It is bottoming out because you are clipping the hell out of it would be my guess.

make the internal volume smaller? that will gradually increase tuning.

But its only the deep notes, below the tuning of the box. that makes it bottom out. its fine to the higher notes

Or just dont play those songs.

ya, but I like those songs

Seal the woofer. Turn the SSF up.

Only two options other than "don't play those songs".

there is a really tiny leak on the box? would this affect anything. the leak is small enough that I can't feel it, but If I play a 20hz sine wave I can hear it easily. So would a leak that small matter. i do plan on fixing it soon, but its not a easy fix.