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Neither speaker plays • Check the settings on your receiver or amplifier. Refer to the owner’s guide that came with
it for instruction on settings.
• If your 251
TM
speakers are connected as a second set of speakers to your receiver or
amplifier, check that the connections have been made to the “B” terminals and that
the “B” speakers are selected to play.
The bass or treble is weak • Check the tonal balance setting on your receiver or amplifier.
Only one speaker plays • Check the balance control on your receiver or amplifier and make sure it’s centered.
• Check the wires connected to the speaker that does not play. Make sure the wires are in
good condition and are firmly connected. Review the “Making the connections” section on
page 9.
Only one speaker still plays • Disconnect the working speaker from the receiver or amplifier.
• Switch the cord of the “faulty” speaker from its original receiver or amplifier jacks to the
other set of jacks (the working speaker was originally attached to those jacks).
- If the speaker now works, the problem is in your receiver or amplifier. Reconnect your
speakers to a working unit.
- If there is still no sound from the speaker, continue below.
• Remove the cord from the working speaker and connect it to the “faulty” speaker.
- If the speaker now works, the problem was in the original speaker cord.
- If there is still no sound, the problem is in the speaker.
• If trouble persists, contact your authorized Bose
®
dealer, who will arrange for service. Or,
contact Bose customer service. See the inside back cover of this owner’s guide for a list of
phone numbers.
Warranty period
Bose 251 environmental speakers are covered by a limited five-year transferable warranty.
Details of coverage are on the warranty card that came with your speakers. Please fill out the
information section, detach, and mail it to Bose.
Customer service
For additional help in solving problems, contact Bose Customer Service. See the inside back
cover for offices and phone numbers.
Cleaning your speakers
Use a cloth dampened in mild detergent and water to remove dust or dirt from the outside of
your 251 speakers. Or use a hose to rinse them thoroughly with fresh water. Do not use
enough pressure to force water behind the grille and into the drivers or the acoustic ports.
Protecting the speaker wire
The bare ends of the speaker cord can be affected by exposure to the elements. This is
especially true of saltwater exposure. You may use a silicone caulking material, such as RTV
adhesive, to protect the connections. It is commonly available at hardware stores. If you do
use caulking, apply it only after the wires are connected and the knobs tightened down.
Check the connections annually, and reapply as needed.
Problem What to do
Troubleshooting
Maintaining Your 251
TM
Speakers
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