i have a pair of polk audio 6.5 ex coaxials w/ a 3/4 inch coustic silk dome tweeter for my front stage these are run in parallel to a pioneer 100w rms x 2 amp. i have 200Hz high pass caps on the polks and 8000hz caps on the tweets. also i have the x over in the amp set at 100hz high pass (12db).Whenever I change the volume level i can hear an audible "pop" w/ each incremental change in volume. I dont hear it in the rear speakers or the subs. should i try different filters or do i need to get new components? on the subject has anyone heard the new jl evo xr 3 way series? id like something w/ decent midbass. also any opinions on the morel sr-6.2 2 way sys. or the focal polyglass series?