Speaker User's Manual
5
English
Selecting the location for your speakers
For best results, mount both speakers on the same wall, facing the listening area. Make sure 
they do not face each other. (Outdoors, if you are not using an existing wall, consider the 
length of your listening area as your “wall.”)
The 251
TM
 speakers should be placed at least 7 feet (2 m) apart.
Please consider the following before mounting your speakers:
  • Measure the length of speaker wire you need to connect each speaker to your receiver 
   or amplier. To determine the wire gauge you will need, refer to the “Wire recom- 
   mendations” on page 13.
  • It is important that the speaker wire not be tripped over, pinched, or pulled. Determine 
   the best route to protect the wire.
CAUTION: Do not mount on surfaces that are not sturdy enough, or that have hazards concealed 
behind them, such as plumbing or electrical wire. If you are unsure about installing these speakers, 
contact a qualified professional installer.
  • Regardless of where you place your speakers, make sure they cannot fall and cause 
   injuries.
  • Bose
®
 251 speakers are not magnetically shielded. Keep them at least 9 inches (23 cm) 
   from any video screen or monitor.
Note: This product is not intended for use in areas where it will be subject to high vibration. If you 
are unsure about installing these speakers, contact a qualified professional installer.
Figure 2 
Speaker placement guidelines
Setting Up
7 ft (2 m)
minimum space between 
speakers 










