Nate Dogg 51

So I have a tricky set up in my car 08 civic exl with navi. I have the stock 8" sub tapped into a PAC SOEM-T and it doesnt seem to distort, but i keep the gain set so i never had the deck turned up too high. I have had older setups with crappy LOCs but this one seems pretty decent. The thing is i cant really control the midbass in my car because i have the bass boost off and bass on the deck turned all the day down. I have the sub on neutral though. Any suggestions and do you think this piece might help my problem?

All i do when i go to get one of his new zips is go to megaupload and hit download it says open with save and something else i choose open with itunes and i use mozilla firefox ao when it finishes under downloads i double click it copy the zip into a folder i can find easily and open itunes file, add folder to library and find the zip. Idk if i answered your question but thats just how i do it.