I just installed some Polk 5x7 Dxi's in all 4 doors of my 2013 Edge Sport with the upgraded stock Sony system and really heard very little difference (if not worse) from the stock speakers. The factory speakers were pretty good quality and had vinyl cones with butyl rubber surrounds, and the rear speakers actually had heavier magnets than the Polks.
I'm upgrading the sub next with a Alpine MRP-M500 amp and a JL Audio 8W1v2-4 8" sub in the stock box. I'll be reinforcing the stock sub box by bonding 1/2 MDF and dynamat to it to firm it up. I think this is where I'll really see some improvement and much deeper bass response.
Will keep you posted
I just installed some Polk 5x7 Dxi's in all 4 doors of my 2013 Edge Sport with the upgraded stock Sony system and really heard very little difference (if not worse) from the stock speakers. The factory speakers were pretty good quality and had vinyl cones with butyl rubber surrounds, and the rear speakers actually had heavier magnets than the Polks. I'm upgrading the sub next with a Alpine MRP-M500 amp and a JL Audio 8W1v2-4 8" sub in the stock box. I'll be reinforcing the stock sub box by bonding 1/2 MDF and dynamat to it to firm it up. I think this is where I'll really see some improvement and much deeper bass response. Will keep you posted