Originally Posted by maxcichon
Let me just jump in for a comment?
When I tested a number of different cap values, I was using an audio tet disc with monotone frequencies. I did this to see just where a certain value would audibly change the sounds coming from the door speakers. Then I listened to some of my favorite music-George Thorogood-to make sure I liked what I had done. GT and the Destroyers is a good test disc because it is complex and has good bass runs.
It is a personal preference-not everyone would be happy with a single value.
I did notice that with too high a value (330 and up) the door speakers started to sound tinny. There was a noticable gap in frequency response.
I figure I'll eventually spring for a pair of high-end 6.5"ers for the doors in the future-Infinity Kappas probably- for their ability to reproduce mid-low freqs better than the OEM's. $100 isn't too bad for the added pleasure.
JMHO, ya' know?
Im not sure what tinny means exactly.
If you go higher than 330uF you should be letting more bass go to the door speakers.
Your testing does prove what works best in real life, so 270 might be the best value