Bowers & Wilkins CWM3 Using a Pre-mountKit, 189mm 7.4in 285mm 11.2in 159mm 6.3in 234mm 9.2in

5. Using a Pre-mount Kit

Custom install pre-mount kits enable the locations of in-ceiling and in-wall speakers to be defined before the sheetrock (plasterboard) is fitted to the studs (joists). Routing and cutting of speaker cable is also made easier using pre-mount kits. A pre-mount kit (PMK) comprises a plastic moulding that defines the aperture size of the specific speaker model, two perforated metal straps and four plastic clips.

To use a PMK, first attach one strap to each side of the moulding using the plastic clips. The PMK assembly can now be attached to the studwork by nailing the metal straps to the studs so that the plastic moulding is located at the appropriate position.

When the sheetrock (plasterboard) is subsequently fitted (marked on the outside to denote the position of the pre-mount kit) the PMK plastic moulding serves as an internal cut guide that significantly eases cutting the speaker aperture.

Diagrams 6-9 illustrate PMK installation.

189mm (7.4in)

285mm (11.2in)

159mm (6.3in)

234mm (9.2in)

Diagram 8

PMK cutout dimensions

Diagram 6

PMK strap attachment

Diagram 7

PMK stud (joist) installation

Diagram 9

Sheetrock (plasterboard) installation

ENGLISH

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