i'm not really into competing in sq contests or anything. i just want to improve my sound for personal enjoyment. i recently bought a pioneer 6600 deck and would like to upgrade my stock 6.5 speakers. i don't plan to use an amp. just the deck straight to the speakers. i was looking at kicker's k60 6.5 coaxials. are these any good? are there better ones in the same price range? any help is appreciated.