new box only hittin lows

Just found what center freq and Q was on the amp and it seems like it would help.  It allows the bass boost to boost only certain frequencies, hopefully I can boost the higher frequencies to level it out.  What i'm confused about is the fact that it plays highs with bass all the way up on radio but not with bass down and volume up.  This makes me think something in the radio is messed up.  I did the radio and box at about the same time so it's deffinetly a possibility.  Maybe I'll try my old $80 JVC huJensen VM9214 Flip out, JVC 6x9's,Sony 6x9's Pioneer 6x9's, 2 Alpine Type R's in ported box, JL 1000/1 V2 Slash, Sony GTX6040 240 watt amp, Kicker CVR(Black), Alpine 500 (300) watt amp.

With a lowpass filter set to 80, and a Subsonic set to 35, the amp is only going to play the frequencies between 35 and 80. 

I have 4 - 12" alpine type-r's and after building six different ported boxes for them, I really believe that these subs don't produce good bass above 50 hertz at all. I also think you have wayyyyy too much port area for those subs (I know its dependant on box sq.ft.) but i've had better results when I shrunk the port area down. I will be pulling my box soon and swaping it for my sealed 4-15" box which I thought sounded far better and louder to the ear.