How to attach a wall plate without a fixed roof?

[Sjukbrorsan]

Ah, ok. Yes, as mentioned, it is placed very poorly (or is the image deceiving?). There should be at least a meter between it and the meter panel.

Try a temporary screen and see how it feels. You can use old sheets or whatever is on hand. That will give you a better sense of the volume effect.

The image deceives slightly with the wide angle, but it is tight between them, that’s correct. Definitely not a meter there.