re: Getting Rid of Control 4 - Recommendations?

Sonos ports can control your receivers, but are not ideal unless using an onkyo reciever. Your sonos app will not wake the receiver and change the input unless using onkyo.

Don’t need sonos speakers for sonos amp or port.

Sonos amps can control your TV through HDMI arc but are stereo only. So you can use your manufacturer remote that came with TV.

If already using Denon see if your reciever/receivers are Heos compatible. You may already have free app control available. Heos is ok.

1: Savant
2: Sonos
3: musicast (Yamaha)
4: Heos (Denon/marantz)
^ my opinion after trying all 4

Savant is your best bet imo. It is the best mobile app interface I have used, and can be done for a price similar to sonos.

Look up AVSS if you are in the Baton Rouge area. I tried out 3 of those systems at their showroom. I’m sure there are other companies that will let you do the same as well

Edit: @ OP