a few other comments about my own set-up, on what might otherwise prove an interesting thread.  I'm trying to keep to 'the plan' but do appreciate the call to Wadia.  I should try to arrange a demo.

 First, as we all know, its all about synergy, what we 'like' and ultimately SQ/£: and I'm into tweaking about a set-up that does make me happy - tho I confess I've been happy before and still happier post-upgrade.

upgrading on the source side is not in that plan, except to take full nominal advantage of the upgrade to the amp (bc evo4), with the BG balance (low £'00s).  sorting out mains has prospect of general improvement, but especially with the evo4.  I do think that the Mana/Hutter switch has helped the soundstage as well as the 'organic' feel - which is exactly the 'effect' of toggling between the standard and Ncode signal from the Transcend to the Decade.  That is easily demonstrated to (attested by) visitors.  But I guess there is always more to be had.

Second, tho I'm a digital kind of guy, I've some analogue sources and am pleased with the net effect of the ADX add-on to the Decade. So I would be looking to have equivalent functionality - analogue input (hopefully direct) into CDT/dac/digitalPre.

The leap in functionality I seek is delivery from computer-based storage (easily fed with extra food from Internet/Broadband/Satellite, as well as ripped CDs) - that could feed into CDT/dac/digitalPre.  So back to the twist this thread is taking ...