Hi ​@turbalf 

Welcome to the Sonos Community!

If you are happy with doing so, I’d definitely recommend pulling the sofa out a little - wherever the surround speakers end up, they need to behind your head rather than be basically the same distance from the TV as you.

I think the use of wall mounts would prevent anything behind the sofa (like speaker stands) from bumping into your rear wall with repeated human collapses onto the sofa, and they’d also take up a little less space. You want the rear surrounds to be at head height, or close to it, so don’t put the mounts too far up the wall.

A wooden panel may well help with the acoustics as you suggest, though I cannot say for sure, and yes - one surround would be perhaps too close to the feature wall.

Although, the more I think about it, the more I think that your feature wall should be your TV wall, and that you’d either want a 2-seat sofa or to have the three-seater pulled back (or even at a rakish angle) so you can still get in past the wall. It looks like doing this would put your backs to the natural light source, though. If you did this, stands would be the best option for your surrounds, I feel. This would let the surrounds be further back from your seated position, giving the system space around you to fill with sound. This setup would also give the Arc Ultra a symmetric positioning, allowing it to utilise bounces off walls on both sides to fully render the Atmos soundscape. I suspect the rather enclosed nature of this orientation would enhance the Atmos effects.

As always, it’s up to you to figure out where to compromise. I recommend doing what you can to try different options either without spending on mounts or stands immediately, or do all your testing within the 45 day Money Back Guarantee period and return what you don’t end up using for a refund.

Importantly, have fun finding out! I hope this helps.

Hi Corry, thanks for your answer !

I thought about moving the TV on the featured wall, it clearly would improve the acoustics for the arc, not so much for the surround because one would still be on the side of an open space.
But I am not ready to do this for several reasons, like it would ruin this nice wall, and even a 2 seat couch would close the space, plus I need 3 seats when I have my daughters.
The era 300 on stands would be on the way between kitchen and living room, like the power cords.

I have a better room for a home cinema but I was kicked out to install the play room of my daughters, I’ll get it back when they will grow up a little more in a few years :)

In the meantime I’ll follow your first advice and move a little forward the couch and use wall mounts for the era 300.

I’ll try to put a temporary wood panel and do some listening tests to figure out if it improves the effects of the era 300, and maybe give a try for the arc too, if it does I’ll find a way to add a permanent little piece of wall/panel, a sliding glass panel etc… depending of budget !

Just another question, for the era close to the wall, what is more important : keep the minimal distance with the wall or put maximum distance between the 2 era 300 ?

Thanks a lot !

Hi ​@turbalf 

Yeah, I figured most of that would be an issue. Worth sticking out there though. One last thought on the subject - An “L” shaped sofa, perhaps?

I would say that as long as the surrounds are on either side of you, getting a little space between that one and the feature wall is probably more important than getting the space between them right, but I recommend testing both options and comparing.

You are most welcome!

Hi there, nice surprise today, my sonos order arrived one day in advance :)

So I did the setup and the truplay, just some cable managment left but not a big deal.
Just too bad youtube don’t make atmos to try some demos !

As told before, I know this isn’t the perfect accoustics, but better than nothing :)

Now I am wondering …. sub mini or the big brother ? In front on the TV wall or behind the couch ?
My TV space is only 2.50m x 3.30m, not even 10 square meters, but open on a much larger space (open space that don’t need bass).

I am wondering if the era 300 are ok parallels to the wall, I think yes, if I angle them the side effets will bounce anywhere else than in my ears as I am very close to the era 300.

Time will tell !
Thanks :)

Sub 4, or two, under the couch laying flat on one side.

Unfortunately the sub 4 doesn't fit under the couch :(