I don't know that the OP is even paying attention any longer, but I've had the 685s. They are good speakers with a signature sound. In my system I found them a bit too bright and even edgy sometimes. The mid range was also not as full as I would have liked.
I have to admit that I didn't try much to "tune" the sound as they turned out to be a bit too physically big for my application. For reference, I was running a Sonos unit playing 16/44 files from an NAS through an NAD C162 pre, Emotiva XDA-1 DAC and Aragon 2004 amp. Wiring was all Blue Jeans. That tad bit of brightness was probably due in part to the XDA-1 DAC and perhaps the amp. I say that because NAD is usually characterized as being a bit laid back.
I have to admit that I didn't try much to "tune" the sound as they turned out to be a bit too physically big for my application. For reference, I was running a Sonos unit playing 16/44 files from an NAS through an NAD C162 pre, Emotiva XDA-1 DAC and Aragon 2004 amp. Wiring was all Blue Jeans. That tad bit of brightness was probably due in part to the XDA-1 DAC and perhaps the amp. I say that because NAD is usually characterized as being a bit laid back.