what size box do i need?

Um...transmission line box is pretty hard to design correctly...am I correct?

well all of this will be in a blazer or explorer some small but not honda element small suv. i want the SX 18 i might go with boston pro for surrounds as for the amp on the sub i might use a rockford t20001bd or a u.s. amps ax1500de well i want atleast 1500 WATTS, this will have a cap in line with the amp NOT  A BATTERY,  i know that adding a batt puts me in extreme class i think and as a rookie im not ready for that. i main goal is 150.0-165.0 DB if this can do that then im happy. does any one know the world record for spl, its like 187.5 or sumin right?

I believe you have not been to a show yet.   The currnt world record is 181db       doing over 150 is extreamly hard, at the last show I judged out of 47 cars only 2 did over 150db You might want to reconsider your goals before you go out to the lanes additional battries are fine is Street beat and in Usaci's Stock class. In Db drag you would be able to only have 2 batteries2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR

2007 USACI World Champion

2007 World Record

2006 USACI Finals 2nd Place

They are tough, but well worth the effort.....all I can say is take your time on it and you will be quite pleased.   I will look and see if I can find some of the sites I had when I was building a few boxes like this a few years ago2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR

2007 USACI World Champion

2007 World Record

2006 USACI Finals 2nd Place

well i have not been to any comps yet other the to meter my boy pioneer 12's at audio express and some guy in a jeep thought he could beat my boy well he lost and we metered 136 at least.

Im just forewarning you, the new metering system used in all comps is the term-lab system.   This system uses masurements of pure pressure, vs old meters that took a sampling of audio at 3 given frequencys. List your local area and I will gladly list some shows in the area, some I might even be judging so I would be more then happy to give you tips and advice on your surrent steup or what you plan to do2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR

2007 USACI World Champion

2007 World Record

2006 USACI Finals 2nd Place

im in richmond va but am willing to go to any surrounding state. i want to start a team, i wont be competing in any comp untill i get a suv but iam willing to go to learn.

here is the next show in your area. 7/21/2006 5:00:00 PM 1 BRYANT RADIO SUPPLY COLLINSVILLE VA 540-647-3522 FE+CS SP you can also go to http://www.soundoff.org/cgi-bin/schedule/display.cgi?search=1&display_all=1 to see a full list of shows for the rest of the year. I know I wont be judging any events that far east but I do make it to KY once and awhile2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR

2007 USACI World Champion

2007 World Record

2006 USACI Finals 2nd Place

well i had to work, i might go to the spring showdown or the nhra event.