Oh it'll live. It's writhing in agony as we speak
, but it'll live. Now to make sure the wife doesn't see that new package arrive...
I got hold of a Metrum Quad DAC + the accompanying 7VA power supply. Should arrive tomorrow, then I can post some impressions of this DAC's pairing with the H10 and HE-500. Also bought a couple of extra second hand cables since the Metrum doesn't have USB inputs: Audioquest Forest Optical & Oehlbach NF113 coax cables + a pair of Linn Black RCA's.
Also, now that I have a DAC with SPDIF inputs, I can use my existing Teddy Pardo USB/SPDIF converter to optimize the HTPC > DAC connection. The hard part will be to resist testing all those new variables at once. Every new piece in the chain will have to prove it's worth before it can stay, so I'll swap 'em in one at a time to see what it does.