Bose Virtually Invisible 791

Questions and Answers

S
spencerericJul 26, 2025
How to troubleshoot Bose Virtually Invisible 791 Speakers that do not play?
- K
  khortonJul 26, 2025
  If your Bose speakers are not playing, here are a couple of things to check: * Verify the settings on your receiver/amplifier. Consult the owner’s guide that came with it for instructions on settings. * If other stereo speakers are connected to a second set of audio outputs on your amplifier/receiver, ensure you select the correct A or B speaker setting to match the outputs connected to your speakers.
S
Stephen ArnoldAug 2, 2025
Why do my Bose Virtually Invisible 791 have static noise from one speaker?
- K
  Kimberly CombsAug 2, 2025
  If you are experiencing static or noise from one of your Bose speakers, there are several things you can check: * Inspect the speaker cord from the speaker to the receiver/amplifier, ensuring the wires are in good condition, firmly connected, and not touching across terminals. * Verify the connections from the music source to the receiver/amplifier. * Unscrew the speaker clamps and remove the affected speaker to reveal the cable. Ensure the wires are in good condition, firmly connected, and not touching across terminals. You can also refer to the solutions for 'Only one speaker plays'.
B
burkematthewAug 17, 2025
How to fix weak bass or treble on Bose Virtually Invisible 791?
- J
  James DoughertyAug 17, 2025
  If the bass or treble is weak on your Bose speakers, consider the following: * Check the tonal balance setting on your receiver/amplifier. * Inspect for gaps between the speaker frame and the ceiling surface. * Trace the cord from the speaker to the receiver/amplifier and switch the wires connected to the + and – terminals at that end, if the problem was caused by inconsistent polarity of the connections made at either end of the cable. * Disconnect the cord from the receiver/amplifier channel and reconnect it to a different receiver/amplifier channel.
J
Julian MannNov 9, 2025
What to do if only one Bose speaker plays?
- T
  Teresa DouglasNov 9, 2025
  If only one of your Bose speakers is playing, try the following: 1. Check the balance control on your receiver/amplifier to ensure it is centered. 2. Trace the cord from the affected speaker to the receiver/amplifier, making sure no wires from the + and – terminals are touching. 3. Disconnect the cord from the receiver/amplifier channel and reconnect it to a different channel. 4. Check the cable connected to the speaker to ensure no wires from the + and – terminals are touching. 5. Disconnect the cord from the speaker and reconnect it to another speaker. 6. Check all components to ensure they are performing correctly. Reconnect the speaker to the proper channel of a functioning receiver/amplifier. 7. As a last resort, replace and re-run the speaker wire only after you have followed...

Summary

Installation Guide

Safety Information

Mounting Requirements

Specifies wood frame mounting and depth/thickness requirements for installation.

General Safety Precautions

Covers cautions, warnings, and essential safety instructions for installation.

For Your Records

Section for recording serial numbers, dealer, and purchase date for user reference.

Preparation

Getting Started with Preparation

Introduction to the preparation phase, including reading the guide and unpacking.

Required Tools and Materials

Lists necessary equipment and tools for speaker installation.

Speaker Cable Guidelines

Instructions on selecting appropriate speaker cables and preparing wires.

Speaker Placement Strategies

Guidelines for optimal speaker placement for stereo and home theater setups.

Installation

Ceiling Preparation and Template Use

Steps for preparing the ceiling, using the template, and drilling pilot holes.

Cutting Speaker Holes

Detailed procedure for cutting the speaker hole in the ceiling.

Wiring and Connection

How to get speaker wires ready and connect them to the speaker.

Speaker Connection and Securing

Procedures for connecting speaker wires and physically securing the speaker in the ceiling.

Speaker Mounting Details

Important considerations and methods for securely mounting the speaker.

Testing and Grille Attachment

Verifying speaker functionality and attaching the protective grille.

Reference

Speaker Painting Guide

Instructions for painting speaker parts, including techniques for grilles and frames.

Troubleshooting Common Issues

Solutions for common problems encountered during speaker setup or operation.

Warranty, Service, and Specifications

Information on limited warranty, customer service, accessories, and technical data.

Bose Virtually Invisible 791 Specifications

General

RMS rated power	- W
Recommended usage	Home theatre
Audio output channels	- channels
Amplification device included	No
Satellite speaker weight	2200 g
Number of satellite speakers	2
Satellite speaker tweeter diameter	1 \
Satellite speaker woofer diameter (imperial)	7 \
Power source	-