Ive heard the Focal and they sounded like an airy backgrouded echo from the mid/woofers..tweets sounded great(doors were 100% sealed/deadened)the Hertz DSK series sound ok to me(still have)
But the Carbon Fiber of Infinity just really scream out clarity as well as take some nice power to get loud without cracking. I dont have this set mentioned, but this set here,
Infinity 60 9CS 6 1 2" 2 Way Kappa Series Component 6 5" Car Speakers 50667110130 | eBay yweets didnt last, but the Xovers and mids still working perfect on an Old School CrossFire TEK 100.2..The tweeters in your set look like a better set, and not a PITA to mess with as far as connecting.I ended up placing these tweets in the place of the tweets that blew in my set
CDT Audio TW 25S New 1" Silk Dome Car Tweeters Open Box | eBay
The combination is outstanding