Try this free download from the 2L label: http://www.lindberg.no/hires/test/2L50SACD_tr1_DXD_stereo.zip . I get crackling with this file when played back at its native sampling rate of 352.2. Downsampling to 44.1 causes the crackling to go away. Be careful with the volume. You might be tempted to increase it to hear the crackling at the beginning of the track, but it gets loud when the music starts at 00:04!
There are many other free hi-res downloads at http://www.2l.no/hires/
I received my NFB 28.38 today and had absolutely no issues with the file you linked via USB/Optical. How are you connecting the NFB to your PC? Is it the Amanero? are you running Windows 10?
Buying audio-gd stuff means no future update.
Been there before.
What's there to update when the product works as intended? Kingwa has already stated the units have gone through extensive hours of testing before being shipped. If you really plan on upgrading in the near future then it might make more sense to go for the separate NFB1 AMP/DAC instead of the AIO.
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