I bought the same player a couple of months ago--same comments: low price, great sound, no hiss (-125 dB noise floor they say, and possibly true), yet that confounded whirrrrrrrrrrrrrrrrrrrrr.
I've found no other solution than boxing it closely in my Hi-fi tower rack, in between two other stereo devices, with very little room in between. Improved, though not perfect.
Otherwise there's the "brute force fix" some advocate for purring PCs: just put it behind a room's partition and drill a hole for the cables to pass through...