would two btl 18s fully loaded with a t3k be louder than 1 btl on the same amp. either combo in the same amount of cubic feet? also what would happen if i wired the two subs in series down to .05ohm would it burn the amp up? the subs are dual 2 ohm. is there any way to wire the amp and subs to get them at 1 ohm or something?