first of all i want to compliment the great customer service that DC has. the woman Anna i believe her name is, is very nice, and super helpful. she gave me a very fair price on the recone and upgrade.
now to the point. im running an aq1200 with just one dc lvl4 12. with the lvl 5 coils will i hear a difference, or will the the sub just be able to handle the power better than it did before?