<font color='#000000'>I have a couple of questions regarding my new system.
First, is it safe to connect the same source (my cable box) to the receiver with two audio options (digital audio and standard RCA)? The reason I ask is that I notice if I connect the digital cable, some stations do come in as 5.1, but others produce no sound at all; if I use the RCA jacks, I get no dolby digital information. I hooked both up, and it worked as I hoped. The stations which have digital encoding were recognized as 5.1, and the others were treated as ProLogic.
But is this safe to do? I disconnected the digital cable until I can make sure it's safe to have two audio connections for the same source.
Other question is regarding the speakers. I want to experiment with my sub's location and phase - can I switch the phase with the sub on, or should I turn it off when switching phase?