Miguels

just had a change of heart since i want the 18's badly, will do another box for the 4 15L7 for truck and get the 2 18's for my SUV

then the best bet is going with 3 15's but also means i would need to get another amp for it edit: the avatar you have looks like i can do on my expedition. i do have 4 15L7 spear to use

my stereo would turn off shutting off everything with it, i did change the alternator though and i dont have that problem anymore i do however want to upgrade my audio and wanted to go with the 18 BTL but i been told they wont fit since i need to have more height on the box, Is there a way i can still use the 18 if i face them up instead of straight forward or just angel the box a bit to clear the outside diameter of woofer?

or maybe it could be that i had a bad alternator that would drop to 10 volts when listening, i forgot all about that problem

you can get a pair of 12' kickers with $120. i would go with new and not used since you dont know what the other owner has done with the woofers or if they are burnt out

i found this one that might work for me, i already have one like that on my truck with 2 kicker 15L7 and it hits hard but at high volume it don't sound clean so maybe i didnt tun it right

any that would give me the best sound,

im looking to building a box for some BTL's i will be buying soon and was wondering if anyone can help with specs for box, I will be using it on a 1994 silverado the box will be in the bed and the cab and bed has been ported, i have 19.50 inches height 48.50 wide and 40 depth could even go to 46, thinking of the 4th order box and have the port go through the bed and cab which is 8' by 24 inches