I'm going to have to be stupid here. I haven't had a stereo system for about 20 years (That was when I had my system stolen, and never bothered with it again). Back then we used 6x9 speakers in rear deck powered by an amp and usually a plain jane 9-12 band slide eq. Alot has changed over the last 15-20 years, with passive, active, mono, bridged, caps, etc.
Basically I plan on having my Navigation Pioneer HU, one Lrx2.500 amp (if I can find one) to power my front 6.5" Rainbow Germ Comps, another Lrx 2.250 amp powering a pair of Rainbow 6.5" coax, and a JL Audio 500/1 amp powering one 103v2 sub. And was assuming I needed or would benefit from an Eq, don't know anything about parametric, passive, octave, etc, and the more I read/reserach the more confused I get so was just trying to get some good suggestions I looked at audiocontrol and they have 20+ different styles, just need one that is 1 dinn size to fit in dash and am looking for something that would work or would be feasible.
Thanks and sorry for being ignorant.