So in summary, if I take my stock '12 JKUR w/Infinity system, replace the sound bar and the dash speakers with four Polk db651's and poly fill ... keeping the stock head unit and stock amp ... it will result in a pretty decent upgrade in sound all around?
Not to derail and I know the topic is Polk Audio replacement but I just have to share that I finalized my Addictive Audio instal with the components up front, coaxials in the sports bar and an enclosed 12" sub powered thru a dedicated sub amp and BOOM-This jeep sounds awesome.
Finally got them installed. Way better than stock. Muddled midrange from stock is much clearer. Had my 11yo kid choose when I had one in and stock she definitely noticed the Polk without prompt.
While base is better than stock its still not blow you away. Was hoping for more as I'm taking the useless sub-woofer out when I put Tuffy enclosure in soon. Its livable & a jeep & will be topless most of summer.
Saw dash was pain and was busy with work. Against my better judgment had local Audio shop install fronts for $65. They said it was first jeep and next jeep they do they will charge more cause it was a pain. So I pick it up and notice vibration in passenger side front. Instead of taking it back, take it out myself today. One screw stripped and 1/4" out, no speaker gasket, crappy crimps and exposed wire from stripping 1". Hopefully driver side holds ups considering crappy job they did. Also can see where they pried trim (Audio Sensation, Exton PA) Did rears myself.
Just as an FYI for anyone installing the db651 into a 2012 JKU soundbar
1. Regarding the soundbar baffles that come with the speakers, or the baffles that are included with crutchfield -the holes did not line up correctly with the stock location. Easy fix, on the baffle, I just drilled another hole 1mm from the original hole on one of the tabs
Also, the screws that came with the speaker to attach the grill were either too short (did not hold grill to speaker to baffle) or too long (would drill into the actual soundbar). Fixed by finding shorter screws
Regarding sound - I installed one side speaker and was able to compared stock with db651. The polks sound richer and do not give off a flat echo-ish sound.