As a relative newby to Sonos, I looked to Trueplay to help setup the ideal sound stage adjustments. I enjoyed the Sonos ARC with Sonos Subwoofer as my primary use and added the Sonos ERA 300’s a little later. Sonos tech assistance was very helpful but the result was “underwhelming”. (term used by quite a few Sonos reviewers). The 300’s added little. Yet their design and heft is substantial. Then a review by Murasgul about 10 months ago nailed it: Turn off the Trueplay; go down the rabbit hole.
Sonos really does try to provide a simplified process to help set up a surround sound home theater. Perhaps if your room fits that ideal, it might work. In my case it didn’t. And I suspect many suffer the same poor acoustic response.
When at a music concert, ever notice a small section in the audience where their sound engineers are set up? The music group invests in the engineer/sound mixer to maximize the experience for each hall they play in. And of course, recording studios try to maximize sound similarly. Like our home, our rooms will also benefit with sound tuning.
You’re in the rabbit hole, now experiment with the Sonos App & the available speaker adjustments for EACH speaker: EQ base & treble, heights, distance between speakers, audio sub, volume, audio surround, etc. It may seem daunting, but you’ve already invested $$$ in equipment. It would be so lacking (under whelming) to not have your custom sound stage come about. Movies and music become your own personal concert/movie hall. Not exaggerating!! Ok, that’s the sound part of the equation: now you need a wonderful Video device---size matters! Ps: invest in a 4k or better that may cost about the same as you’ve spent on your total Sonos equipment. Think 50/50 $$$, Sight & Sound.