I would trade the 6X9's for the amp or 12.
It's just heard for me to fathom that the 6X9 have a sound that will mesh with the Focal.
But for me you can mount 2 identical speakers on good and bad structure and I can hear the difference.
Anyway, the Focal will want much power and the Alpine will be super effecient :rolleyes: The Focal has a high Qms, so although it needs power, it will be very detailed, mean while the Alpine will be louder and just color over the Focal detail with mid bass mud. The tweeters should be about the same.
It may work.
Still from the New Alpine stiff I have heard in Alpine vehicles, I would loose the Alpines. Or atleast don't mix them with Focal's.