Think I'm going to Bi Wire in Mono first off but will experiment with Bi Amping. Most people I have spoken to said they found it best in Mono.
I am also getting a Chord Signature digital interconnect to go from the Stream XP to use the upgraded QX DAC in the Pre DAC QX, which have have had for a couple of weeks connected up with Analogue interconnects using the DAC in the Stream XP.
So now I use the Pre DAC QX in AV direct mode for movies but for Hi Fi I can strip out the AV amp using the Stream XP to the Pre DAC QX onto 2 X Powers in Mono. The sound with the one I have is awesome and a country mile ahead of just the AVR400. If it sounds anything like it did in the Demo room at my place I will be a happy chappy.
Fingers crossed it will come today ...