I just have one digital source. So if I plug it into one of the 3100's and configure it as a Master, the other speaker will also play?

Yesterday, without any comms cables connected, I turned both speakers off, held down the 1 on the remote and turned them on, one by one. I made them both Type 1. But when I pushed the "Play" button I could only see Slave, Slave 1 and Slave 2. There were no designations as Master that I could see.

G68SL, G98DH, DSP5500, DSP5500HC, DSP3100, JL Audio F112 Sub, DirecTV, Sonos, 4 Revivers (Highend-Source)