Ok so I have 4 5.5 inch 2 way coaxial Alpine Spr-132a 150 watt 35-65 watt rms speakers in my Prelude. My question is are these any good quality wise. Also when I turn my system up the bass starts to distort the vocals. Should I bridge them in sets of 2 and hook them up to the front channels of my amp and turn the front channel dubbing down low? 2 are in the doors the other 2 are in the rear dash.