The sonos port does exactly what I wanted. I can stream music and can use my own Kenwood amp and Elac 180 watt speakers. I have been waiting for this solution for a while. I didn't go for the connect-amp, because of its bad reviews. I am quite happy with the overall sound. If I have to mention one negative. The High tones aren't as crisp as when I play a CD without using the Port. But that's only minimal and I can live with that small minor. The setup was straight forward and easy to follow steps. It is easier and quicker to set up when you already have an account with sonos.
As expected with all Sonos kit it is well made and easy to set up. I use the device to connect a preamp turntable to my sonos music system.
Pros
Well constructed
Easy set up
Compact
Cons
Pricey