Thanks guys. They are mtx thunder 6000. not free air, but with an aluminium cone, handles the flexure well. Gives good tight bass, plus long enxtended bass. I did not go with a box, because i still want my boot. I achieved everything i wanted from it, so i am very happy with it. I am thinking of desinging an iso baric 'cell' to help compliment the subwoofers. but, the quality of the bass is good. starts at about 20hz, and goes all the way to about 250hz in this setup. which i am happy with. one pic i didnt take was of the rear parcell shelf. i made a complete new shelf and made it factory, but with two alpine ddd 6.5inch components. anyway, basicly i got what i planned when i sat down and designed the system. just hope its enough to impress the guys at the audio stores for a job!! cause ive no job these days!!