Yea, Sonos doesn’t have the ability to rest every device out there that could be attached…there is both too many, and giving ‘official’ approval could potentially be difficult. Imagine if the original device provided to them was one thing, but was sold to the public was actually something different. Some people would want to ‘blame’ Sonos for approving it.

I, too, haven’t tested all devices out there, but in general, what you’re looking for is a fairly simple RCA switch. You could easily go the more expensive route and get a receiver to do that for the Sonos line in, but I’d stick with the much less expensive option. 

Thanks, Bruce! So given that the Prozar switch is only $20, you think I should give that a shot? And I don’t think I have to worry about damaging my amp, etc.? (The Sonos tech didn’t seem terribly concerned about that.) Many thanks again!! -- Brett

The challenge with the device you linked is that it is backwards, with one input, and two outputs. You’re looking for two inputs (the CD player and the turntable) to a single output (the Sonos line in). Look for a more simple RCA switch, two or more device inputs, and a single output. 

Ah! I thought that, too, but then i looked at more of the pictures, and it looked like it operated the other way, too? (I’m not so tech-y with this stuff, so all guidance appreciated!)

Heh. I looked at it for 3 seconds, and keyed on the word ‘output. Let me go look closer at that one, and see if I can either see if it will work, or suggest something (untested) different.

Ok, not wild about the labeling, but if the Amazon description is correct, that should be fine.

Thanks, Bruce!

If all i need, as you say, is a switch with two or more inputs and one output, then i guess i’m willing to a buy a decent quality switch (maybe $100 vs $20), but not go all the way and shell out for a new receiver, which seems like overkill.

I found this one, but have no idea if its better or not. It’s more expensive, tho:

Rolls SS412 Passive Analog Stereo Audio Source Selector

Thanks again!! - B

The ultimate Sonos solution would be adding a Port. Less expensive would be an Era 100 with the Sonos USB-C adapter.

Agreed, but a new Sonos device is substantially more expensive than adding a simple RCA switch. 

Thanks again, folks!

To Bruce’s point, cost matters. But if I’m willing to spend, say, $100 for a really nice switch --- as opposed to hundreds more for a Port or even an additional third-party receiver --- shouldn’t that be just fine?

Thank you!!