It's the most impressive looking but I still don't understand how all of that wire will be a good thing for a very low voltage supply.
What am I missing? 
All of 'that wire' that can be seen at present is basically very clean but also very raw AC, the 'magic' has yet to happen, at least it shouldn't have

This is all just getting the raw juice ready for final distillation for want of a better metaphor.
Things will probably become more apparent when you see what happens after the wallplate back in the office.
From that wallplate each feed will go via (very) shielded cable into a box full of these Paul Hynes PSU's.
They 'do their stuff', and convert the AC to DC, smooth it, de ripple it and that sort of really clever stuff about which I know not a lot hence I let Paul do the (40+ years worth) of thinking & sorting out

From the 12v DC side it gets fed directly to 5.4v dc regs.
The output boards are fed 15v dc.
All of this rectification / regulation is a bit 'noisy' & better off in this instance being done completely seperately from the highly sensitive DAC boards.
So now this very finely distilled DC takes its final journey via Chord Co (UK) very highly shielded, point to point wired cables to the DAC box.
Each dac board can accept 5 individual power supplies instead of just one.
Not only are we feeding each seperateely from it's very own regulated supply - each is kept totally seperate in the earth / -ve so that NO interaction - IM can take place their either.
Having two dac boards running in dual mono config means I need 10 individual PSU's for them.
The other 4 15v psu's are used to power the two output boards which are mounted directly to the dacs.
It is a very interesting and somewhat time consuming project, but my personal preference is to do something once, and do it to the best that I can. The thought of taking this lot appart to add a 'better' sounding cap / resistor / etc etc somewhere later kinda chills me to the bone!
Thanks for the kind words - while I guess it does 'look' impressive - that is more function than design for a change
