Cabling issues with DAC and soundbar
Current set-up - fairly standard hi-fi separates with Yamaha AX-392 amp, plus deck, CD player, tuner etc feeding two pairs of speakers, one pair in an adjoing room. The amp lets you select either pair of speakers, or both on. Current TV is also linked to amp.
A new TV is arriving, together with a soundbar, and the intention is for the soundbar to replace the pair of speakers in the main room, with accepted loss of sound quality, and also switch to digital music from a laptop, in place of the separate components, but retaining the amp.
I know I can feed the remote speakers in the adjoining room via a DAC (probably HRT Music Streamer II or Arcam rPAC), using a USB connection from the laptop to the DAC, and then phonos to the amp. My problem is in also using the soundbar at the same time ie music in both rooms. I could link it to the laptop via a USB or mini jack cable, but that would mean selecting what output I wanted in Control Panel on the laptop, which would rule out music simultaneously through the remote speakers and soundbar.
Should I use a USB splitter from the computer, so that I could have one USB cable going to the soundbar, and one to the DAC? Could there then be conflict as the soundbar has its own DAC, and both might be trying to tell the laptop to choose them?
Any help fully appreciated.