From the review:
" Simply put, I will be writing an upcoming review comparing CODECs. For now, I simply recommend that people stay away from standard MP3 encoding, regardless of the bitrate, if they desire high fidelity playback of their music."
Mr. DeBoer, this is simply irresponsible. I hope your upcoming review has some good blind comparison results to back this claim up. Meanwhile, there's lots of double blind codec results at hydrogenaudio.org that *don't* back up your sweeping suggestion. My own experience , and my own tests of others, don't back it up either. Well-done MP3s *can* be audibly transparent to their sources, to listeners comparing them under blind conditions. Large audible differences such as you describe, if verified by blind testing, would be an indication of *poor* encoding or decoding, or *very* difficult-do-encode source music.
I've owned the Squeezebox btw and it's a terrific device. But FWIW these days, since I got a Pioneer AVR with a USB input, I run a USB cable directly out to my receiver's USB input, and use foobar2K as my server software.