[gijoe]

I'm also confused. Why passive crossovers after an active crossover? Maybe I missed something?

 

[gijoe]

No, the passive crossovers pictured are NOT bi-amp capable. They are just normal configuration as per the diagram. I would be using TWO of those in lieu of the bi-amp capable crossover like the one from the Sony xs-gs1621c. It's more hardware, but if it works, I'll find a way to get it inside the door.

The reason I am still using the passive crossovers is for that extra non-variable level of safety for the drivers, in case a knob on the in-dash eq/crossover gets flipped to an extreme accidentally and runs the risk of doing damage to the tweets or midrange.

I hope that makes sense.

That is unnecessarily complex considering you have an active crossover. If you're that worried just wire a simple cap on the tweeters. It's a whole lot easier, cheaper, and more reliable than having 4 passive crossovers wired up.