I have Morrel surround sound speakers with a sub that I power with an Integra amp to power a surround sound and 2nd stereo channel in another room. I do all my radio and streaming with the connect. The integra amp is dying. I want to replace it with a good quality amp, with the focus being on music and not surround sound for movies, that can power the surround sound system and also the second zone. I am very happy with the sonos system and don't want a "connected amp", the sonos will serve that purpose. Any suggestions?