I understand that Naits require the signal ground from just one source. Naim streamers have a floating option, while Naim CDPs do not. So if one has both these two sources, the CDP would be the default source for signal ground.
What if the streamer is being used and the CDP is turned OFF? Will there still be a signal ground going to the Nait? Is the mere fact that the DIN cable is connected between the Nait and the CDP sufficient? Or does the CDP have to be switched ON as well?