I believe the manufacturer’s Debut Carbon doesn’t have a built in pre amp which is needed if you are connecting to a line-in level device such as the Sonos 5, Amp or Port.

I’m basing this on a comment in the manufacturer’s set up .pdf for the Debut Carbon :

“Connect to any amp with integrated phono amplifier or use an external phono preamp.”

As Sonos require a line-in level signal, I am assuming the Sonos edition turntable must be fitted with a pre-amp.

Not a game changer if you really want a Pro-Ject Debut Carbon and can find a manufacturer’s version at a much lower price. You can always add an external pre-amp for little money.