Bi-Amping Which amp for highs and which for lows?

What would the advantage be of adding another crossover (the capacitor) ahead of the HF input of the speaker?  

I think the OP would need some decent measurement gear to get that volume control set correctly.

I still am of the view that bi-wiring with the best amp rather than bi-amping with different amps is better approach, but I wish the OP success regardless.

Agree about bi-wiring rather than bi-amping, unless the OP is very savvy and dedicated.

What is OP?

what is the diference with bi-wiring?
i was goona use the A-B outs on me HK3800 to supply the juice to my individual drivers in the MT project

OP is "original poster", which in this case is you.