DC-1 is the only gear in my house so far that has given me issues with noise. As previously mentioned by another member, it was indeed specific to one channel which was made pretty clear when connected to speakers. It was less noticeable with headphones as to if it was both channels or only one.
Synchronous is sounding great so far. Although in asynch, it turns into utter crap. I've connected it to different mac's running on battery vs. plugged. Same thing with my PS3. Haven't tried it with my Marantz CD5004 yet.
Also, figured out the Mute situation. I changed the mute option from -20dB to Silent.
I'm not sure if there are any benefits associated with asynch mode…I won't know until the DC-1 stops acting up. My info shows that it's on Version 3.
FWIW, my house is very new and all the electric work is done quite well.
EDIT: Just wanted to mention that after placing my order they took nearly a week before shipping it out. They said that they thoroughly check their DC-1s for international order. Not sure what they check for.
Edited by Zoom25 - 7/3/14 at 7:51pm