Hi @Sonos-house.

Welcome to the Sonos community and thanks for reaching out to us.

You do not need to be concerned as the speaker fits the requirement necessary to be powered by the Sonos Amp without the need of any third party amps for extra power. We can always visit our website to double-check the Sonos Amp specification, limitation, feature, and functionality. Here is a website I found about the Polk RC80i specification that clearly indicates it fits the Sonos Amp specification.

I hope this helps.

Please let us know if you still have further questions or concerns. We are always here to help.

Thanks,

Thanks for the info!  Appreciate the help. 

Hi @Sonos-house.

You’re welcome. Please do not hesitate to reach out or create a new topic if you still have further questions or concerns. We are always here to help.

Thanks,