Hi, you can only use one pair of rear speakers, so in this case an upgrade to Era 300s would be the best solution. Also, unfortunately they do use a different power cord, so this would need to be swapped out also.

Thanks for your inquiry.

Since Move 2 has two tweeters and Move 1 has one you cannot pair two together to create a stereo pair. However, you can group multiple Moves of either generation together to create a larger sound. Each player would be playing both the left and right channel sound.

Thanks, for your inquiry.

Hi Danny,
Yes, you would still need an Amp to power them. If you chose our Sonos Amp it does have a line-in input for additional devices. The advantage to using our Sonos Amp with the Sonos speakers is that they are the only passive speakers that can be tuned to your specific environment using a process called TruePlay in our app. Second, you can connect up to three pairs of Sonos by Sonance speakers to one Amp.

Thanks for your inquiry.

I think you will be pleasantly surprised by the output. I'd recommend you check it out at your local store as it will give you a good sense of the sound output.