Hi

I want to install some beovox in my bathroom and balcony. In order to put them into the wall I need some boring bit. I have a normal wall with bricks and plaster. It is not easy to find boring bit with a diameter of 180mm (Beovox 2.1). It is even harder to find one with 230mm (Beovox 2.2). Can you give me a direction of such boring bit? How did you install them?

Should I use a resonance box? Is there a specific box adjusted to the box? What is the exact diamenter of the box? The info from the documentation of bang-olufsen.com is ambiguous beovox 2.1 (176mm versus 180mm) and beovox 2.2 (226mm versus 230mm)!