Bi-Amping with one amp?

Let the games begin! Never bi-amped? Ah, the wonders of alternative systems call to you... 

If you had two stereo amps you would need to decide upon either Horizontal passive bi-amping (one amp dedicated to all bass L/R, and one amp dedicated to all M/T for both L/R), or Vertical passive bi-amp (one amp dedicated to each speaker). 

However, since you have 5 channel, it's a moot point. Use two channels per speaker, as you said. For ease of wiring, keep the channels grouped per speaker, i.e. 1&2 for L and 4&5 for R. Do not try to sum channels. Use them individually, dedicated for each input. 

I haven't looked at the amp, but typically you will need to split the L/R input signals to get your four inputs for the four channels of amplification. Double or triple check connections. Do not do this when tired or drinking. If in doubt, look up a wiring diagram online. 

The real fun is when you begin to ask the question of whether the four channels is better than a different amp's two channels with bi-wire. Correct answer; only comparison would tell. 

Thanks guys. The question was mostly out of curiosity. Not sure if I will actually try this but it is good to know.

I have a Bryston 5 channel and have been itching to try this with some Vandersteen 3As. The speaker wiring is pretty clear. The source I am struggling with a visual. I assume the white would be split going to channel 1&2, the red split going to 3&4?

Thanks N80, but this is the speaker wiring. What I am referring to is the wiring from the dac or preamp.