I am thinking of buying a used Esoteric k-03 player....
Normally they should run quiet :-)
Anyway, even when you get a noisy one you can send it to Esoteric to repair because they offer from Sept. 14 the "X" upgrade for K-01 and K-03. The Player has to be sent to them for implementation. Cost for the upgrade is about 1000 USD excl. shipping. It is an upgrade Board to enable DSD Streams.
The new versions will be called K-01X / K-03X