Just popping in to say that I have the S 520's and love them!
However, being that they are my first "real" speakers (only Best Buy bookshelf junk from the 90's before) I have little to compare them with!
I have them paired with a Cambridge azur 640a v2 and Dac Magic that I run FLAC out of my computer with. Had a Outlaw LFM-2 sub that blew up on me, so I'm currently looking for another sub (maybe LFM-1 Compact).
Any small "musical" subs under $400 (new or used) that anyone recommends for the 520's? My LFM-2 seemed to me to mate pretty well with them in my smallish office my system is in.