Bose Virtually Invisible 791 Installation Guide download pdf (Page 8)

EnglishTAB 6TAB 8 TAB 7 TAB 3TAB 5 TAB 2TAB 4

INSTALLATION

Preparing the ceiling

Be sure you have read and understand all of the safety

and preparation information on these pages so you can

continue with confidence.

CAUTIONS:

• If you are unsure of your ability to complete this

process, contact a professional installer.

• Certain forms of insulation (such as horse hair plaster,

newspaper, cellulose, or any blown-in materials) may

pose a risk of ignition. Be sure to keep all insulation

away from speakers in accordance with the installation

instructions.

WARNINGS:

• Make sure the spot chosen is safe for cutting. Do not

cut through surfaces that may have hazards such as

electrical wiring, conduits, or plumbing concealed

behind them. Follow all other safety precautions.

• If you believe there is asbestos insulation in the ceiling

where you want to install a speaker, do not drill or cut

there. Find a different ceiling area for the speakers

instead.

• If there is another type of moveable insulation in the

ceiling, you can proceed after reading these tips:

– You may need to cut or push the insulation away

before inserting the speaker.

– Beware of hidden nails when reaching into the

ceiling to remove insulation.

– Wear gloves and protection for your mouth, nose,

and eyes before handling insulation that contains

fiberglass.

– Be sure keep a 4-6 in. (10-15 cm) area around the

speaker hole free from any types of insulation to

maximize acoustic performance.

Using the template

1. Center the template on the spot where you want the

center of the speaker grille.

2. Press the template to the ceiling with your hand or

use painter’s tape to hold it in place.

3. Trace around the edge of the template.

CAUTION: DO NOT trace around or cut around the tabs

that are for use only when the template serves as a paint

shield.

Drilling a pilot hole

1. Choose the proper spade bit to drill a hole that is

large enough for the blade of your cutting tool.

WARNING: Use eye protection and be sure to observe all

safety precautions while using a drill or cutting tool.

2. Drill the hole inside the circle you have drawn.

Choose a spot near the center or closer to the

outside edge of the circle, depending on which

will be easier when you begin to use your saw.

(21.9 cm)

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Bose Virtually Invisible 791 Installation Guide Page 8

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