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Bose Virtually Invisible 791 series II - User Manual

Bose Virtually Invisible 791 series II
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Bose
®
Virtually Invisible
®
791 series II and 591
in-ceiling speakers
Owner’s Guide • Brugervejledning • Bedienungsanleitung • Gebruikershandleiding
Guía del usuario • Käyttöohje • Notice d’utilisation • Manuale di istruzioni • Kezelési útmutató
Brukerveiledning • Podręcznik użytkownika • Manual do proprietário • Bruksanvisning
• • • • •

Table of Contents

Questions and Answers

  • T
    tracyhaysJul 27, 2025
    How to fix no sound from Bose Virtually Invisible 791 II Speakers?
    • C
      carl04Jul 27, 2025
      If your Bose speakers aren't producing any sound, first, make sure the speaker wires are securely connected to both the speakers and the receiver or amplifier. Then, review the settings on your receiver/amplifier, consulting its owner’s guide for specific instructions. Also, if you have multiple sets of speakers connected, verify that the correct A or B speaker setting is selected to match the outputs connected to your speakers.
  • K
    kwoodsAug 5, 2025
    What to do if only one Bose speaker is working?
    • K
      Kelly CruzAug 5, 2025
      If sound is coming from only one of your Bose speakers, try these steps: 1. Center the balance control on your receiver/amplifier. 2. Ensure that the positive and negative terminals on the receiver/amplifier aren't touching. 3. Disconnect and reconnect the speaker wire to a different channel on the receiver/amplifier. 4. Check the speaker wire connection to the speaker, ensuring the positive and negative terminals aren't touching. 5. Test the speaker by connecting it to another speaker wire. If it works, replace the original wire.
  • J
    John PaulAug 15, 2025
    Why are my Bose Virtually Invisible 791 II Speakers making static noise?
    • S
      Savannah MckayAug 15, 2025
      If you're hearing static or noise from your Bose speaker, make sure the wires are in good condition, securely connected to both the speaker and receiver/amplifier, and not touching across terminals. Also, ensure the music source is properly connected to the receiver/amplifier. You may also refer to the troubleshooting steps for 'Sound from one speaker only'.

Summary

Important Safety Instructions

General Safety Warnings

Key safety precautions for installation and use of Bose speakers.

Product Use and Care Notes

Important notes on product usage, installation, and care guidelines.

Introduction

About your Virtually Invisible 791 series II or 591 in-ceiling speakers

Overview of the Bose in-ceiling speakers for stereo music and home theater.

Unpacking

Instructions for unpacking the speaker carton and confirming included parts.

Recommended tools

List of tools needed for completing the speaker installation process.

Speaker wire requirements

Specifications for speaker wire gauge and maximum length for optimal performance.

Placement guidelines

Recommended speaker placement for optimal stereo performance in a room.

Placement in unfinished construction

Guidance for installing speakers in unfinished construction using a rough-in kit.

Installing the Speakers

Cutting the speaker hole

Step-by-step guide on tracing and cutting the speaker hole in the ceiling.

Connecting the speaker wire

Instructions for connecting speaker wires to the positive and negative terminals.

Installing the speaker

Process of inserting the speaker into the hole and tightening clamp screws.

Attaching the grille

How to magnetically attach the speaker grille to the speaker rim.

Painting the grille

Guidance on painting speaker grilles, including paint types and application tips.

Care and Maintenance

Troubleshooting

Solutions for common problems like no sound or sound from only one speaker.

Limited warranty

Information about the product's limited warranty coverage and registration.

Technical information

Specifications including compatibility, driver complement, dimensions, and weight.

Accessories

Customer service

Contact information and resources for additional help and support.

Bose Virtually Invisible 791 series II Specifications

General IconGeneral
TypeIn-Ceiling Speaker
Speaker Configuration2-way
Sensitivity89 dB
Impedance8 Ohms
Mounting Depth3.5 inches
Weight3.5 lbs
Woofer Size7 inch
Tweeter1-inch

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