FWIW:
I just auditioned the sig S250 and it didn't like my Transparent Ref networked cables. Henry suggested this would happen to me, but I have long cable runs and couldn't easily find a good substitute cable without it getting real spendy.
My friend also auditioned one (he doesn't have networked cables) and placed an order. He's in love.
If anyone wants to donate 26 foot quality speaker cables, I'd place an order right away.