You guys (and gals) really need to give the HEOS sysyem a good hard look. The IP integration with Marantz and Denon AVR's is super easy, rock solid and bullet proof. The HEOS controls input, power on/off and AVR volume. No DHCP reservation, no volume lock, no drama it's plug and play.

3pedal, all those SR-5009's you have in the field are screaming for a HEOS link or better yet, a rack full of Drives.

I've sold alot of Sonos over the years but we've completely switched to the HEOS platform and we aren't looking back. Do yourself a favor and give it another look. Buy a link or an Amp and try it out. You'll be surprised at how well this stuff performs.