Im going to totally upgrade my sound system soon! I got 2 kicker 15in subs, and kenwood amp. Im looking for some new speakers front and back. Also I guess if I want good sound from the speakers I guess I need a new small speaker amp, whats a good one. Im looking to spend 400-450, Ill prolly get new ones off ebay. Whats the sounding speakers and amp for the price? I would like some that have good bass and good SQ.