I have a wireless SB2 running as my transport into an Audio Mirror DAC (non-oversampling) via coaxial digital interconnect using FLAC encoded files. I am simply amazed at how good it is as a transport. I was using a Sony DVP-S7000 as my transport before and, well, there is no comparison. And the jitter performance of the Sony was reportedly very low already. The jitter levels of the SB2 are extremely low and are clearly audible - this is not some subtle effect that has you straining to hear a difference.
One major benefit with the SB2 vs the SB1 is it's large buffer. I've have shut down my computer running Slimserver v6.0.2 and music still plays from the SB2 for around 10-12 seconds afterwards. I have never run into any problems with dropouts, etc... Also mentioned, the bit-perfect output.
I have also tested it's ability to reject RFI interference, such as from a microwave, etc... No problems were noted.
My computer (server) is located upstairs and my SB2 is located downstairs. The signal has to go through several walls and a floor. My reception on the SB2 is reportedly around 60% according to Slimserver.
The only thing I have noticed is that the text display sometimes sputters in an area with multiple wireless networks, e.g., in an apartment/condo complex. I have 6 other neighbouring wireless signals in my vicinity. This doesn't appear to affect the sound quality, but does sometimes cause a very slight delay in menu/display selection on the SB2.
Another bonus, if you are into modding, there are a number of developments down the pipe from aftermarket companies and avid DIY'ers - battery powered power supplies, external AC power supplies, various mods to their internal circuitry and DAC, etc...
Apparently "Vinnie" from Red Wine Audio is already running his SB2 from an external battery supply and has modded his SB2 internally. He mentioned to me that once modded, the internal DACs sound better than external DACs...
Once you go Squeezebox, it's hard to go back to conventional sources...
