I need your help. I have the MTX ThunderX 300XD amp in my truck with generic subs. I wish to upgrade those two 10" subs with newer hard hitting ones. I can't decide between these three subs that will work best with my amplifier: 2 Kicker 05C104 =$90 2 JL Audio 10W1v2-4 =$160 2 MTX Audio US-XT-1004 =$100 And also, should the wiring between the sub woofers and amplifier be good ones, or can I keep the 6 yr. old stuff, as long as it works? All other wiring is upgraded. The new subs will be enclosed in 6 yr. old wooden boxes and replace the old subs I have now. Here's a current picture of my set-up: http://s8.photobucket.com/albums/a8/no0b12345/?action=view¤t=r67575.jpg Thanks!