Connecting receiver - suggestions

The best way to introduce a turntable to Sonos is via a Line-In equipped Sonos device.  These include an ERA 100/300 + adapter, a Five, an Amp, or a Port.  The turntable also needs to have a phono pre-amp, either built in or external.  See this link:

https://support.sonos.com/en-us/article/listen-to-your-turntable-on-sonos

Oops, duplicated data….

Or not. Note that there is a whole section of the forum here, which discusses exactly what you want to do. 

Bluetooth is not a particularly hi-fi interface. The line-in option is a better option, in my opinion. You can then use the line-in input for your existing speaker setup, and/or to the new speaker. 

Bluetooth would be a distant last choice here too. Any of the wired line-in options is better.

The Beam will be decent for listening to the turntable but it is just a soundbar so it is a bit limited.

Hard to choose which speakers are best for the turntable. The Fives are probably the best sounding and give you two line-in connections. The Era-300s sound good too and include Atmos playback. The line-in adaptor(s) are extra. Era-100s will be a bit better than the Beam, maybe not enough to justify the cost though.

Thanks everyone, it’s very good information.  As an old hi-fi guy, I should have kept my Def Tech’s and receiver. I recently bought the Beam and Sub Mini recently, maybe I can exchange them.  

The way Sonos works only the soundbars and Amp work well for TV audio so you may want to keep the Beam for that.

As others suggested an Era-100 and line-in adaptor is going to be the inexpensive but good quality option.