Top critical review
Decent speaker, poor feature support
Reviewed in the United States on May 31, 2018
I purchased the HEOS 1 speaker with the intent of using it to extend the sound from my home theater system into another room. I already have a Denon HEOS receiver, and people here on Amazon confirmed that what I wanted was possible, so I bought the speaker.
The speaker itself sets up and connects to the HEOS mobile app easily enough, but I was having trouble getting it to work with my receiver. I struggled with it for a couple of days, making slight progress thanks to some strong Google-fu (the speaker includes no documentation regarding connecting it to a receiver), but finding myself only able to play audio from the receiver's Tuner through the speaker, not from any of the other inputs. So I finally broke down and called Denon support. After being on the phone with them for a little while, letting me run through the whole story, they informed me that my receiver, an AVR-S730H, does not support sending audio from ANY digital source to the speaker. The only workaround is to run the HDMI signal through a device that will split out the digital audio to an analog signal, run both that and the HDMI signal into the receiver, and link the analog source to the appropriate input. Of course, doing that can introduce all kinds of HDMI compatibility issues.
So be aware: if your plan is to use this speaker to extend audio from a digital source (HDMI or optical) to another room through the HEOS speaker, you need to first make sure that you're using a Denon HEOS receiver that allows this. According to their Customer Support, that means models AVR-X3400 and above, and those are not cheap.