Aleph 5 passive vertical bi-amping?

Speakers are Sonus Faber Grand Piano floorstanders. They are rated up to 200 watts, so I don't think there would be a problem there. Was hoping to get some extra benefits of using the 2 amps, ratehr than having to worry about tuning crossovers to start with?

My GPs are the original mk1 with the bi-wire posts. Therefore I was just planning to use one channel for bass and one for treble, keeping the internal crossovers. At the moment my preamp would need Y adapters (XLR) to separate the signal to the 2 amps, unless I go for a preamp with 2 sets of outputs to enable bi-amping. I've never done this before, so I hope I haven't overlooked anything! Thought it would be an interesting experiment that should yield some benefits to make it worthwhile?

Thanks for your responses. It sounds like it could offer a good improvement in the sound, particularly with regards to dynamics and control - which is what I'm after.

The Alephs work best with the balanced XLR inputs. This will mean that I need to split each output signal from my preamp (L and R) using some sort of Y adapter. As far as I can make out, this is the only way that I would be able to connect up what would become the 2 Left and 2 Right inputs on the power amps. Does anyone have any suggestions about adapters or specially terminated XLR cables? If I can get a good adapter, that would enable me to continue using my XLR Nirvana S-X interconnects, which I am loath to part with!