new equipment power conditioner or more powerful amp?

I have a nice system also, but don't have dedicated lines, power conditioning, receptacles or room treatments (although I think my power and room are ok).  I don't have a particular area I can look at (listen to) and say it definitely needs improvement.  Not sure if you have done so already, but I am way behind the eight ball in terms of music streaming, internet radio, and the like.  I am waiting for an updated Sonos Connect to come out.  I believe the other streamers have surpassed the Sonos in fidelity, but I want to wait as I believe the Sonos is easiest to use.