Is there a dac/headphone amp combo or just a dac available with 2 USB inputs?
At least with two imputs that could come from a Mac motherboard that has no RCA out, cause I thought of using the Schiit SYS with adapters to standard TRS but that seems scuffed.
It is for a desk setup with two computers and preferably one set of headphones.
Never see a Dac with two Usb in.
What you can do is buy a Dac with Usb,Coax and Optical in.
One Pc connect with Usb and the Other Pc coax or Optical.
I mean Optical is better because the humms from the Coax.
Maybe when your Pc has no Soundcard you must buy one who have Optical or Coax input on it.
Do the (presumably) @ZeosPantera approved method, blue tack two SMSL Su-8’s together, manually power one one and leave the other off, use the remote to power it off and the other one on with one press, leave both on USB input so it toggles between the two. Use an RCA combiner (reverse Y cable basically) to output to one amp.
You could in theory use any DAC with remote that uses IR for control.
Still thinking about this. I see the Zeos review of the MOTU M2 2x2 USB-C Audio Interface.
It says 2-in/2-out, so if I used two 1/4 inch to XLR cables, each going from their respective computer input to the M2, would that allow me to hear the two in the one headphone out?