Active biamping is the best way to do crossovers. It eliminates the reactive load of passive crossovers leaving only the inductance of the voice coils. And the crossover reactive load, depending on how well it's done, can choke an amlifier and in any case no crossover is the best crossover.
Biamping vs only inserting an Active crossover
I guess if one is deciding to biamp, you need to insert an active crossover device.
When you insert an active crossover device, does this improve the quality of the signal directed toward individual drivers on your speaker so as to avoid the need to biamp which is also designed to better focus the signal reaching the drivers in your speaker?
Are there phasing issues when you biamp?
Further, biamping is a way to bring the quality of tubes to mid and tweeters so another reason why biamping may be of benefit.
In the process you substantially increase all the interconnects which to me sounds unfavorable overall. So in the end does any of this effort make any sense at all???