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Type: Wallboxx XL

  • B-System Backbox for Concrete and Brick walls

The Wallboxx Universal will be delivered with the latest version, which will be available from the beginning of 2021. Alternatively, predefined cut-out dimensions are still possible ex works.

The housing material is framed by EPS and additionally insulated on the inside in order to achieve low resonances and improved sound insulation properties.

The Wallboxx was developed to enable a highly professional installation of flush-mounted speakers for brick or concrete walls. The Wallboxx fits easily into your installation process and enables the wall surface to be processed quickly and easily.

-modular and flexible product available in 10 sizes offering endless possibilities
-front and rear boards are made of Fermacell (15 mm)
-fix cut-outs allow for best possible handling of electronic ductwork (20 mm + 25 mm)
-The wallboxx is lightweight and at the same time offers a robust stability with excellent
-shock absorption features compared to other systems
-our materials deliver a better audio reproduction when compared to other boxes that come in wood, sheet metal or plastic
-better insulation with airborne- and structure-borne noise compared to conventional in-wall systems
-provided are adapters and installation components so that all conventional speaker systems can be integrated easily and quickly


Dimensions : 990 × 435 × 120 mm
Max Cut-Out-Dimensions : 870 × 315 mm
Internal Volume : 30,10 l

Included in delivery (per piece):
1 wallboxx H-9943 (H-9943 with Filler-Set)
1 installation manual

Installation Video

Backbox finder