Yes the only reason I am thinking about the XPA2 is to go with a 2 plus 5 setup, and another reason I am doing this in stages is a bit of misdirection/sleight of hand regarding the WAF, if I don't add everything all at once I am hoping to appear less insane, we'll see how it turns out, past experience suggests it may be a workable strategy, hence also only one sub in the first pass.
I would also love to hear your experiences if you go add an XPA5 to your setup with the Denon as pre/pro, that would be very interesting.
