Hi, I'm thinking about splitting my Hi-Fi/AV system into two distinct systems - one for Hi-Fi and one for AV. The Hi-Fi system would initially be comprised of an Arcam CD23 (CDP), a Roksan Caspian DSP (pre-amp), a Roksan AV5 (Power-amp), B&W 805s (speakers) and a Sonus Faber Gravis (sub). In theory I could bi-amp the 805s with four channels of the power amp's five channels. Would I gain any benefit from doing this? I remember that when I bought the 805s the dealer said that it wasn't worth bi-amping the 805s. So, has anyone tried biamping 805s (esp. with a multi-channel amp) and did you see any benefits from doing so? Regards, Jules.