Hello Folks

Could someone possibly help me please? I haven’t a clue with this unfortunately 

I possess the following Sonos products 

playbar (non Alexa)

2x play 1s (non Alexa)

1 x gen 3 sub (with Alexa)

can I control all the devices which are set up for “living room” in the Sonos App with Alexa or must all products be Alexa voice controlled? Do I require a Amazon echo or similar to act as the master? If I require an echo how do I configure the Sonos to it?

sorry to ask a dumb question

Thanks

Martin Stevens