Best support for compact speakers

I have a system with 2 * Nubert nuBox 381 and 2 * 311 compact speakers. For those yet realtiv large boxes I have already tested a lot of brackets and was somehow never really convinced, sometimes it was the stability, even the appearance, or attachment to my plasterboard wall (Rehgips).
Now I finally have what I wanted, a really stable, durable and beautiful mount.

My boxes hanging now rock solid and at the correct angle as where they should always hang :-)
The inclination of 15 ° and the huge swing area are perfect to bring his boxing in the right direction. This one has also in changing the boxes never feel the holder would "give up".

For me the perfect bracket.

Greeting

PS There are unfortunately no cavity plugs in, but there are probably nowhere!