Installation instructions for solid walls

The installation in solid masonry or concrete ceilings is as easy to perform as the installation in drywall constructions. In solid walls first of all a recess has to be prepared. For this purpose cerasonar offers appropriate mounting frames. The frame is to be installed flush into the chiselled wall and accomodates for the speaker.

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Step 1

For the installation of the invisible cerasonar speakers a mounting frame is required. This special accessory is available for all models. For this purpose an appropriate recess has to be prepared in the masonry. The recess has to be about 2mm larger all-round. Place the mounting frame into the recess to control the correct fitting.

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Step 2

The frame is ideally mounted flush to the finished wall surface. Therefore the wall plaster should have been applied to the masonry already, so that the speaker only has to be fine spackled flush to the wall surface using a fine or structured filler. The connector cable has to be installed into the frame before.

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Step 3

With the help of two roof battens the frame can easily be brought into position and then fixed. Use construction foam to foam out the lateral joints and wait until the frame sits firmly and stable in the recess.

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 Step 4

Then use four frame dowels at the minimum to anchor the frame in the surrounding masonry. The next steps then follow the „Installation in drywalls“ instructions.

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Step 5

Insert the cavity insulation material into the recess. For this purpose use the material enclosed.

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Step 6

The enclosed cable lugs have to be properly crimped to the connector cable. Then connect the cables following the colour coding / markings, for example, marking to plus (red). This order has to be maintained building and amplifierwise.

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Step 7

Insert the speaker into the prepared recess. Make sure that there is no strain between underlying insulation and panel (no compression). The speaker should be easily insertable into the opening.

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Step 8

Screw on the speaker according to the pre-drilled holes. The heads of the drywall screws should immerse about 1 mm into the diaphragm material. Since the diaphragm has a lower density than the plasterboard panels, the screws have to be tightened cautiously.


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Step 9

Important: After fixing the screws a functional test using a music signal is mandatory!


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Step 10

The joints between wall/ceiling and the speaker panel have to be filled with a crack bridge.

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Step 11

Joints and screw holes have to be sealed using a fine filler.

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Step 12

The speaker panels have to be spackled all-over with the surrounding surface. Thus, Q3 and Q4 wall / ceiling qualities are easily possible.