Only One XLR (Balanced) Input - Cable w/ Two Sets of Output?

XLR y-cables are readily available, but they absolutely should not be used for what you are proposing. They are used to route an XLR output to the XLR inputs of two components. Using them to connect two outputs to one input would amount to connecting the two outputs together, which would result in the output impedance of each component loading the output of the other. In turn resulting in poor sonics and possibly even damage, eventually if not sooner, even if the two sources are never on at the same time.

What you would want is an XLR switch box, that would allow you to select which of the two sources is routed to the integrated amp. I would expect that such things exist for use in pro audio applications, although offhand I’m not aware of a specific model to suggest. But Googling "XLR switch box" may very well lead you to something suitable.

Regards,
-- Al

Here is a 3:1 stereo XLR switcher you can pick up at Amazon. Be aware during your search to inquire about audio clicks and pops during switching. I’ve heard that such can be pretty loud.

Nobsound Little Bear 3(1)-IN-1(3)-OUT XLR Balance Stereo Audio Switcher Passive Selector Splitter Box

Thanks guys.  Ended up getting a Goldpoint XLR selector - reviews were good + local business.  Mapletree Audio in Canada also made selector (cheaper), but they were backed up on orders. Didn't like the ones on Amazon.

@rdk777. Awesome!  Please report back your impressions.