1000 Pro with dCS Vivaldi?

[Confused]

Could it be to demonstrate how good the AD conversion in the D1000Pro is?

You could put that another way I suppose....

Actually, I was thinking exactly the same thing as Pim.  If you consider that the dCS is pretty much a state of the art way of producing an analogue signal, it would be a splendid test of exactly how good the Devilaet AD conversation is, or to put it another way, how good the Devialet, with all its ADH trickery, is when running as a conventional amp.  You could then try it versus other amps, or indeed dCS via digital AES/EBU, to see if Hifi_swlon has a point.  It doesn't make much sense as a Devialet front end though, £45k even without the CD player?  I can think of many fun ways of spending that much cash!