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S AFETY I NFORMATION
Important words of caution
Please read this owners guide completely before you start.
Then carefully consider your experience using the tools and
taking the precautions referred to here.
If you have doubts about doing this installation, you should
contact either the dealer you purchased the product from, an
electrician, or a professional audio/video installer. You can
describe the job and request a cost estimate before committing
to installation service.
WARNING: Installation shall be in accordance with the applicable
section of the National Electrical Code, ANSI/NFPA 70, and/or the
National Fire Alarm Code, ANSI/NFPA 72, as applicable. The wiring
method and compartment shall be such as not to interfere with the
operation of the speaker.
CAUTIONS:
- Failure to follow the instructions in this owners guide voids all warranties on your speakers.
These speakers are not designed or recommended for installation in walls, in ceilings of masonry, or in drop ceilings.
This product is not intended for use in Air-Handling Plenum Spaces.
Consult local building codes be fore you get started with this
installation.
See product enclosures for safety-related markings.
Make no modifications to th e speakers or accessories.
Unauthorized alterations may compromise safety, regulatory
compliance, and system performance.
Be sure to keep all insulation away from speakers in accordance with the installation instructions in this guide.
Mount these speakers in wood frame or
similar construction only
Each speaker requires a round space of 8 5/8 in. (21.9 cm)
diameter, plus a minimum of 4 1/8 in. (10.5 cm) of depth behind
wallboard that is a maximum of 3/4 in. (1.9 cm) thick.
Bose recommends installing thes e speakers only in wood frame
or similar ceiling construction wi th adequately spaced studs, as
found in 2 x 6 construction. These installation guide instructions
are specific to this type of installation only.
Important safety instructions
1. Read these instructions -“ for all components before using
this product.
2. Keep these instructions -“ for future reference.
3. Heed all warnings -“ on the product and in the owners guide.
4. Follow all instructions.
5. Install in accordance with the manufacturers instructions.
6. Only use attachments/accessories specified by the manufacturer.
For your records
Serial numbers are located on the rear of each of your Virtually
Invisible ® 791 speakers.
Serial numbers: _____________________ ____________________ _____________________ ____________________
_____________________ ____________________
Dealer name: ___________________________________________
Dealer phone: ___________________________________________
Purchase date: ___________________________________________
We suggest you keep your sales receipt and warranty card
together with this owners guide.
VIRTUALLY INVISIBLE is a registered trademark of Bose Corporation in the U.S. and other countries.
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O VERVIEW AND C ONTENTS
Basic steps to installation
The instructions on the pages that follow will help you
complete each of the steps below.
Step 1:
Choose approximate locations for each
speaker.
Step 2:
Observe the cautions and use the template
for precise placement.
Step 3:
Cut the hole for each speaker.
Step 4:
Wire each speaker.
Step 5:
Insert and secure the speaker in the ceiling.
Step 6:
Test each speaker to make sure it works.
PREPARATION 2
Before you begin... . . . . . . . . . . . . . . . . . . . . . . . . 2
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Other equipment you will need . . . . . . . . . . . . . 2If painting is in your plan . . . . . . . . . . . . . . . . . 2
Selecting speaker cable . . . . . . . . . . . . . . . . . . 3
Preparing the cable wires . . . . . . . . . . . . . . . . 3
Placement guidelines . . . . . . . . . . . . . . . . . . . . . . 4 Using the arrow as a guide . . . . . . . . . . . . . . . . 4
Placing speakers for stereo sound . . . . . . . . . . 4
Placing speakers for home theater . . . . . . . . . . 5
Other considerations . . . . . . . . . . . . . . . . . . . . . 5
INSTALLATION 6
Preparing the ceiling . . . . . . . . . . . . . . . . . . . . . . 6Using the template . . . . . . . . . . . . . . . . . . . . . . 6
Drilling a pilot hole . . . . . . . . . . . . . . . . . . . . . . . 6
Cutting the speaker hole . . . . . . . . . . . . . . . . . . 7
Getting the wire ready . . . . . . . . . . . . . . . . . . . . 7
Connecting the speaker . . . . . . . . . . . . . . . . . . . . 8
Finishing the installation . . . . . . . . . . . . . . . . . . . 8 Securing the speaker . . . . . . . . . . . . . . . . . . . . 8
Testing each speaker . . . . . . . . . . . . . . . . . . . . 10
Attaching the grille . . . . . . . . . . . . . . . . . . . . . . 10
REFERENCE 11
Painting the exterior parts . . . . . . . . . . . . . . . . . . 11 Painting the grille . . . . . . . . . . . . . . . . . . . . . . . 11
Painting the frame . . . . . . . . . . . . . . . . . . . . . . . 12
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Customer service . . . . . . . . . . . . . . . . . . . . . . . . . 14
Limited warranty . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Technical information . . . . . . . . . . . . . . . . . . . . . 14
