Pardon me. I am a recovering audiophile and have changed up my jeep’s stereo a couple of times now. I think that I may have finally found nirvana (for a jeep!). I have had some pretty esoteric stereo gear at home and in the car in the past and really see no place for this in the jeep but we still need great tunes.
What I started with was the factory Alpine system with separate tweeters and a sub. I swapped out the 4 main speakers for the Kicker 77KICK10 upgrade. That was okay but I gave up a little mid-bass and volume because I plugged 4 ohm speakers into the Alpine system designed for 2 ohms.
At the same time, I damped the speaker enclosure (fronts, sound bar and sub enclosure) with Hushmat and stuffed them with some Polyfil.
The system sounded decent but it lacked a little clarity and mid bass and then I found the details of the PRS mod that folks are doing to the factory systems. I was mostly there with the alpine speakers in damped/stuffed enclosures.
Fast forward to the other day….
I swapped out the Kickers back to the factory Alpines with the blue cones and replaced the OEM Alpine subwoofer with a Pioneer TS-SW2002D2. I also cut off the material covering the OEM Alpine speakers with a razor blade, hoping for an undesirable increase in clarity.
The other part of the PRS mod is to remove the original capacitors from the factory tweeters and to replace them with different values. On the Alpine system, that would be 6.8uf capacitors. I took that a step further and used audiophile grade polypropylene capacitors. The problem is that they are humungous compared to what you might otherwise swap in. I just remote mounted the capacitors and it worked fine. See pics.
Anyway, I will need a week or more to see if I like this but so far, so good and I am pleased. While I did not do an A-B comparison between the polypropylene capacitors and some cheap thing you get at rat shack or fry’s, these caps seem to sound pretty good. Very clean and not overly bright.
Unmodified tweeter next to modified tweeter for comparison.