Each Port can provide one stream of music so it you wanted to listen to something different in two rooms you’d need two Ports and two inputs to the amp. Many multi-channel amps have nice switching options. Take a look at a couple here to get an idea what is available. https://www...
I am designing a PCB with a stereo DAC UDA1334BTS and two stereo jacks -- one for "line out" and the second one for headphones. My original plan was to connect the DAC output both directly to the "line out" jack and to an input of an amplifier TDA1308 which will be connected to ...