What does everyone think of nvx jad and the mvpa4 4 channel amps? I bought both. Using the jad800.4 for the mids and the mvpa4 for the highs coming from pioneer deh-80prs. Running (4) 6 1/2" Rockford pro, (4) 5 1/4" Rockford t1 components, 4 Rockford t1 tweeters, 2 Rockford pro tweeters. Once I...