Yes, Echo and Dot can do what you ask, but a big question involves where the music is coming from: Amazon, Pandora, your phone, somewhere else? If you simply want to stream music from your phone to your receiver, you might simply want a Bluetooth receiver hooked up to your A/V receiver. If you are streaming from the web, then the Echo/Dot is a very good way to do this (and much more). Provide some more details about what you are trying to accomplish.