I repeat there is no magic .Sound of polk audio in open i.e with doors wide open is excellent and clear but when the doors are closed it sounds muffled and from below kind. For me i have installed front firing speakers on dash board inside the quarter glass area which brought the sound stage perfectly spot on to ears. though there is a need for little bit of balancing because i am sitting off centre on drivers seat.i have discarded the rear speaker. only issue is the subwoofer which still sounds from back of head with bit of delay a having a dsp with time alignment could have brought it upto front level yet i am managing with it. When we all say"hearing is believing " then it should be the truth in your case.