There is something confusing about that cabling problem.
My capitole mk2 works fine with a standard XLR to XLR Cardas cable connected to a krell KRC3 preamp.
But when I connect it directly to my power amps using my usual mixed XLR/Cinch cable I only get a "psshhhhh..." and , well... nothing else.
Well the same cable works perfectly between krc3 preamp and the power amplifiers. So something must be peculiar with the capitole XLR output.