Power consumption - Power off / Deep Standby Request

It would work the same WiFi as wired, you have to have the receiving device, be it Ethernet or the radio, powered and listening for the magic packet.

Of course there is a minimum power draw, first from the required power supply to keep the necessary electronics awake, then the Ethernet port and radio receiver to acquire the packet and last the circuitry to recognize the packet and power up the rest of the electronics.

Looks to be working for folks other than Sonos.

https://www.intel.com/content/www/us/en/support/articles/000027615/intel-nuc.html

The CR-100 was dropped from support many years ago and Sonos gave some users a credit.

A few users blocked updates to their Sonos so they could stay onb the last version of the firmware that supported them.

My spouse has refused to use our Sonos since her beloved CR-100s went away and has been quite resistant to me getting new Sonos toys ever since.

I think there were several issues with the CRx00 line of remotes. Battery issues, screen (LCD) issues, memory size and CPU speed issues, such that any that still remain are stuck on S1. They certainly haven’t been sold by Sonos for a long time. 

I’ll admit I never felt the need to own one, it was always more convenient to use my iPhone. 

At inception in 2005 the CR-100 was the only choice and phones were not as universal as they are now. CR-200 replaced the CR-100 and had a touch screen. By then touch screen phones were rapidly replacing older phones and customers were asking: “Why am I purchasing a single purpose touch screen device for about the same cost as a phone?”. Further, users were asking why they had to carry two devices around the house when they believed that their phone could do everything. The writing was on the wall for the CR-200 and many other controller devices that have been squeezed out of the market.  Since production runs of CR-200’s were in the 10’s of thousands and phones were in the 100’s of thousands, soon to be millions and 10’s of millions, CR-200’s were not a very good value. Eventually a large number of CR-200 screens failed and the screen manufacturer had stopped production. It was not possible to repair the CR-200’s. As the CR-200’s had begun to fail, SONOS had developed their phone/pad Apps and customers simply downloaded a free controller App, rather than attempting to have their CR-200’s repaired. At one point SONOS purchased the remaining display inventory to be used in repairs, but it didn’t take long to blow through these. 

Makes sense, I would love that. But it won't redeem us veterans from the workaround with the smart/dumb plugs anyway. I don’t anticipate I will like to replace all my expensive sonos with new hardware anytime soon.

I can feel that. My parents have a smaller sonos due to Xmas presents and my recommendation. Especially my mom ist not touching the app. All she wants is pressing the button and her favorite radio channel in the kitchen and bathroom. Whenever there's some grouping or channel lost, one of the kids has to stop by and set it up. In fact, I think, there's room for improvement with usability. The app is not very intuitive for unexperienced users.

I have set up some IFTTT shortcuts on her phone, so she may at least switch channels without the app. It's not very satisfying, due to stability of the service. We can't even tech her Siri or Alexa. Parents couldn't handle additional hassle with smart plugs. It's permanently powered on.

To be fair: I think IFTTT is a great service for integrating all kind of things, even devices which are not directly amenable to home automation. Webhooks is fun and very flexible. Just the Sonos service has some glitches recently. Hope it’s a temporary issue. My impression is, that Sonos is not taking it very seriously, which is sad.

I’d like to emphasize this one request again. Which may be feasible for existing hardware by some  minor changes in firmware architecture - idk:The use case of my parents:

Their sonos system is set up with grouped speakers and favorites for each room. To be operated with device’s pause-button. They (almost) never change it. When speakers are powered off (either on purpose by a switch to save energy, or by some kind of power outage), favorite channel and grouping is lost. You need the app in order to configure it again, which is annoying.

Why not save that setting and restore it after power up?

Well, Sonos doesn’t support cutting the power to Sonos devices on a regular basis, so it’s hard to imagine that they would add a feature that encourages using the devices this way.  

I haven’t checked out the details recently, and could be misremembering, but Sonos has worked on lowering the standby power consumption in their more recent models.  I think this is how they chose to address the concern.

True. It may rather be a policy, not so much a technical issue. My guess, most users are not aware how much it costs them. Especially here with german energy prices. I think 1W idle consumption would make it unreasonable to power-off with some switch solution. Depends on particular use case of course.

For example, the Beam 2 has a Power Consumption While Idle of 6.3 watts.
And it is a constant power consumption all year round, 24 hours a day.
I will let people calculate for themselves what it costs annually, just to have a Beam 2 connected.
It is an insanely high idle power consumption and that is the reason why I have not bought this product.