How can I play FLAC files from my NAS

[thumb5]

Not sure I can answer that. If you're feeding the analog output of the CLIC into the 200, I'd expect that you might hear a difference in quality between the CLIC and AIR, which is an all-digital set-up. That's because the digital to analog converter in the CLIC will probably have some kind of sonic character -- it might even be deliberately designed that way. So if anything I'd expect the AIR set-up to be a more accurate, faithful reproduction of the original signal. But that's not to say it's subjectively "better" because that's a matter of personal taste -- if you prefer the way the CLIC sounds, it's better even if technically (perhaps) less accurate.