Others to consider: Bluesound Power Node, Hoes Amp, Klipsch Power Gate. Bottom line: If you are already an Echo user get the Link or Link amp, otherwise think about going with Sonos for a bit more money. If this review was helpful, hit the “helpful” button!
https://www.amazon.com/Echo-Link-Amp-amplify-speakers/dp/B0798GJVTR

