Fosi Audio desktop chain

[ViriObscuri]

Hello everyone.
I am opening this thread to ask for some advice from you. I am currently building a desktop listening station, intended to be used exclusively while I am working at the computer. I am transitioning from a pair of Edifier R1280DB passive speakers connected to a very old iBasso DAC, which in turn is connected to the PC via USB, toward products from Fosi Audio.

I have just purchased their new ZH3 DAC/headphone amplifier and their GR70 tube headphone amplifier/preamplifier.

What is the best way to have this result:

Chain 1: PC (USB) → ZH3 → GR70 → headphones
Chain 2: PC (USB) → ZH3 → active speakers (or Amp → Passive speakers, in the future when I will retire the active speakers)

Is there a way to switch between 1st chain and 2nd chain without having to plug and unplug cables?

 

[Leonidas_k]

You should be able to do this by selecting in the operating system the audio output.
I have not tried with two USB devices at the same time, but have tried switching between USB device, onboard audio card and external audio interface via optical, without problems.