This is very good information!! I hope this applies in the same way to '12.
The caveat I would add is that I do not know if it is being "colored" by the collection device. (mic in an iPad Air). I need to breakdown and buy a USB mic (calibrated UMIK-1 USB or equiv) and use some better software like REW.
I find the alpine high system simply terrible. The bass is exaggerated to please people who don't have any appreciation for quality music playback. It just sound "loud" and boomy and uncontrolled. Turning down the bass on the equalizer doesn't help. If interpret graphs correctly, I see that they did emphasize the bass. Possible to modify the stock sub box and woofer cone for a relatively easy mod? I will then have to replace dash speakers next.
So you replaced all your Alpine speakers with JL Audio?
I have 4 JL audio 6x9s and the same set of dash speakers from my old RAM. I had replaced all the factory stuff, since I didn't have the Alpine system. I just got my new truck and ordered it with the Alpine System I was expecting better sound. After reading this, Im thinking about just swapping out my dash speakers and the 4 doors with the JL Audios speakers I already have. seems to be I should have much improvement. Ill leave the sub, center and headliner alone. Your thoughts?
What model of JL 6x9 speakers did you put into the doors? Somewhat interested in swapping out the ones in the rear doors but concerned about mounting depth. I already have JL speakers in the dash and that really woke up the factory sound.