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

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Bowers & Wilkins CWM3 manual Using a Pre-mount Kit

CWM3 specifications

The Bowers & Wilkins CWM3 is an in-wall loudspeaker that exemplifies the company's commitment to delivering high-quality sound while integrating seamlessly into any living space. Designed for custom installation, the CWM3 offers robust performance for both music and home theater applications.

One of the main features of the CWM3 is its compact and discreet design, which allows it to blend perfectly with the wall without compromising sound quality. The flush-mount installation ensures that the speaker remains virtually invisible, making it an excellent choice for those who want a clean aesthetic in their home.

The CWM3 employs advanced technologies to deliver a remarkable audio experience. It is equipped with a 6.5-inch woven Kevlar bass driver, renowned for its ability to produce powerful low frequencies with precision and clarity. This driver is complemented by a 1-inch aluminum dome tweeter, providing a smooth and detailed high-frequency response. Together, these elements create a balanced soundstage that is engaging and immersive.

Furthermore, the CWM3 features Bowers & Wilkins' innovative FST (Fixed Suspension Transducer) technology, which enhances the mid-range frequencies and helps to create a more natural and transparent sound. This technology minimizes distortion, ensuring that vocals and instruments sound as intended, making it an ideal choice for critical listening environments.

The speaker's construction is robust, featuring a rigid enclosure design that minimizes unwanted resonance. This ensures that the sound produced is clear and free from coloration, which is crucial for achieving the high-fidelity audio that Bowers & Wilkins is known for.

Another notable characteristic of the CWM3 is its adaptability. The speaker comes with a switch that allows users to adjust the sound output based on the room's acoustics, whether it be for a larger open space or a more intimate setting. This flexibility ensures optimal performance, regardless of the installation environment.

In conclusion, the Bowers & Wilkins CWM3 is a remarkable in-wall speaker that combines aesthetic elegance with advanced audio technology. Its high-quality drivers, innovative features, and customizable performance make it an excellent choice for those looking to enhance their home audio experience without the bulk of traditional speakers. With the CWM3, Bowers & Wilkins continues to uphold its legacy of excellence in sound quality and design.