i got a legacy 600w watt amp with two 700W 10" ripper boss subs in a boss enclosure and two 5 1/4" planet audio speakers with tweeters and 6" speakers and to planet audio mp3 to player in a mazda 626 lx v6. i'm paying everything with instlation and wiring 1100$ cdn. is it to good buy and is the quality f all that stuf good?