Nice choice. Did you order them in Mocha or Bordeaux? I assume that you are getting the stand4 also. They make a difference. If you need to 'tighten' up the sound you can fill them too.
That being said they will sound good out of the box then get very flat like someone disconnected the tweeters then go to sounding great again. With the original C1's it was between the 100 - 200 hr mark. I can't say regarding the sig's because when I got mine I ran the 24/7 but swapped out my Octave V70SE (tubes) for solid state before going back to the Octave. I have read from others the break in for the MKII/Sig is not as long.
Yes there is a good following for Dyn owners
http://www.avsforum.com/t/686371/dynaudio-owners-thread
That being said they will sound good out of the box then get very flat like someone disconnected the tweeters then go to sounding great again. With the original C1's it was between the 100 - 200 hr mark. I can't say regarding the sig's because when I got mine I ran the 24/7 but swapped out my Octave V70SE (tubes) for solid state before going back to the Octave. I have read from others the break in for the MKII/Sig is not as long.
Yes there is a good following for Dyn owners
http://www.avsforum.com/t/686371/dynaudio-owners-thread