Cool great info!
OK question time again lol.
Most components come with a crossover of their own. My Infinity's in my Honda did. by connecting to different lugs you could limit the frequency range.
Did your Focal's come with something like this? If so, why would you add another crossover? Or is it that the crossover you used works better than the included ones?
I also have a Clarion 4 channel amp with an adjustable crossover built in that's still in my old Ram truck, with the Alpine CDA-7939 CD Max HU, and the ERA-G320 Sound Field Processor. For a simple system, that was one bitchin setup. But, if I had used a seperate crossover like yours, instead of the amps built in one, would it have been better?