Bose Portable Speaker R 51 User Manual

®
®
The Bose Free Space 51 Speakers  
Owner’s Guide  
AM268612_00 _V.pdf • January 10, 2003  
 
Contents  
Where to find...  
Setting Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Before you begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Unpacking the carton . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Required tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Optional tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Decide if you need a professional installer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Selecting the location for your speakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Choosing the speaker cord (not provided) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Making the connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Preparing the speaker cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Connecting the speaker cord to the speakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Connecting the speaker cord to the receiver/amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Checking the connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Testing the connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Customer service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Warranty period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Cleaning your speakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Protecting the speaker cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Technical Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
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AM268612_00 _V.pdf • January 10, 2003  
 
Setting Up  
Before you begin  
Thank you for purchasing your Bose® Free Space® 51 speakers. These high-performance  
outdoor speakers are engineered to provide sound quality far beyond that of most outdoor  
speakers. The speakers are also designed for permanent outdoor installation, and therefore  
can withstand nature’s elements – so you can be confident they will perform for years to  
come (see “Environmental capabilities”, page 9).  
Unpacking the carton  
Carefully unpack your Free Space 51 speakers and save all packing materials for possible  
future use. Check that your system contains all parts identified in Figure 1. Do not attempt to  
use your speakers if any components are missing or appear damaged. Instead, notify Bose  
Corporation or your authorized Bose dealer immediately.  
Note: Now is a good time to record the serial numbers located on the bottom of each Free  
Space 51 speaker. Write both numbers on your warranty card and in the space provided on  
page 2 of this owner’s guide.  
WARNING: To avoid danger of suffocation, keep plastic bags out of the reach of children.  
Figure 1  
Package contents:  
• 2 Free Space 51  
speakers  
• 4 wire nuts  
Required tools  
Optional tools  
You need the following items to complete this installation:  
• Speaker cord (see “Choosing the speaker cord” on page 5)  
• wire strippers  
• Shovel or spade  
• Phillips-head screwdriver (#2)  
Decide if you need a professional installer  
If you have any doubts about using these tools, or handling or cutting cord, now is a good  
time to contact a professional installer. For customers who will install the speakers them-  
selves, please follow the instructions provided in this owner’s guide.  
CAUTION: Please read this owner’s guide completely before beginning the installation.  
Failure to follow the instructions in this guide voids all warranties on your speakers. If you are  
unsure of your ability to complete this process, consult a professional installer.  
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AM268612_00 _V.pdf • January 10, 2003  
 
Setting Up  
Selecting the location for your speakers  
Prior to installation, carefully select locations for your Free Space® 51 speakers. The  
speakers can be installed on almost any surface such as wood, concrete, or the ground.  
When choosing a location, please keep the following guidelines in mind:  
Figure 2  
Speaker placement for  
optimal coverage  
Primary Coverage Area  
• Select a level surface for your speakers. This will prevent movement or vibration during use.  
• Place your speakers where the speaker cord cannot be tripped over, pinched, or pulled.  
• Do not place your speakers in an area where water tends to collect.  
• Do not bury your Free Space 51 speakers deeper than 1/2 inch (1.3 cm) (Figure 3a).  
• Use wood screws to fasten the speaker to a wood surface, such as a deck, if desired  
(Figure 3b).  
Figure 3  
(b) deck  
(a) ground  
1/2"  
(1.3 cm)  
Free Space 51 installation  
Note: If you want to connect two or more speakers to an Acoustimass® module or to other speakers,  
please contact BoseCustomer Service or a professional installer for assistance.  
Choosing the speaker cord (not provided)  
WARNING: Before running speaker cord through a wall or under ground, check your local  
building code requirements, or contact an electrical installer.  
• Use the proper gauge (thickness) of speaker cord. See “Cord recommendations” under  
Technical Information” on page 9 for proper gauge, or check with your authorized Bose®  
dealer.  
• If your installation requires the cord to be buried in the ground, use direct-burial rated cable  
or run the cord through a PVC piping channel. Always use moisture-resistant speaker cord.  
• Place speakers and run cord before digging holes or burying cord.  
If you think your speaker cord may be exposed to salt water or water containing chemicals  
such as chlorine or fertilizers, you may use a silicone caulking material as added protection  
for the speaker connections.  
5
AM268612_00 _V.pdf • January 10, 2003  
 
Setting Up  
Making the connections  
WARNING: Before making any connections, turn off your receiver or amplifier and unplug it  
from the AC power (mains) outlet.  
Preparing the speaker cord  
Speaker cord consists of two insulated wires. Usually one is ribbed or red (+), and the other  
plain or black (–). Direct-burial cable has a protective outer jacket around the wires.  
Consider the following guidelines before cutting any cords:  
• Measure the length of cord needed to connect each speaker to your receiver/amplifier  
• Strip the outer jacket back 2". Strip the inner insulation on both wires back 1  
(Figure 4).  
/
2" (1.3 cm)  
Figure 4  
2 inches (5.0 cm)  
Outer jacket  
Stripping the wires  
1/2 inch (1.3 cm)  
Connecting the speaker cord to the speakers  
1. Connect the positive (ribbed or red) speaker wire to the positive (red) wire from the  
speaker cable. Twist the stripped wires together.  
2. Secure the wire nuts with a twisting motion. If you prefer to reinforce the wire nuts, use  
electrical tape (Figure 5).  
Figure 5  
Reinforcing the wire nuts  
3. Connect the negative (plain or black) wire to the negative (black) wire from the speaker  
cable, as in steps 1 and 2 above.  
Connecting the speaker cord to the receiver/amplifier  
1. Connect the speakers on the left side of the listening area to the left channel of your  
receiver/amplifier (Figure 6).  
a. Attach the positive (ribbed) wire to the red (+) terminal.  
b. Attach the negative (plain) wire to the black (–) terminal.  
2. Connect the speaker on the right side of the listening area to the right channel of your  
receiver or amplifier, as above.  
Note: If your Free Space® 51 speakers are being connected to your receiver/amplifier as a  
secondary set of speakers, be sure to make the appropriate connections to the “B” channel.  
6
AM268612_00 _V.pdf • January 10, 2003  
 
Setting Up  
Figure 6  
Connecting cord to receiver  
Checking the connections  
Check the speaker connections carefully. Make sure no loose strands of wire touch across  
terminals. This could create short circuits and damage an amplifier or receiver.  
Tighten any loose connections before you plug in the receiver/amplifier.  
Testing the connections  
To make sure your speakers operate correctly, follow these steps:  
1. Center the balance control on your receiver/amplifier.  
2. Set the stereo/mono control to MONO.  
3. Play some passages of music containing deep bass through the speakers.  
The sound should seem to come from a point between the two speakers. The bass should be  
full and natural. If not, the connections may be reversed, causing the speakers to play out of  
phase. To correct the problem, make sure all the cords are connected positive to positive (+  
to +) and negative to negative (– to –).  
7
AM268612_00 _V.pdf • January 10, 2003  
 
Reference  
Troubleshooting  
Problem  
What to do  
No sound  
• Make sure the receiver is plugged in and turned on.  
• Check to be sure the AC power (mains) outlet is working.  
• Disconnect any headphones plugged into the headphone jack.  
• Make sure the receiver is not set to MUTE.  
• Refer to the owner’s guide that came with your receiver.  
• Check connections to both the speakers and the receiver. Refer to “Making the  
connections” on page 6. Correct any connection errors.  
• If your Free Space® 51 speakers are connected as a second set of speakers to  
your receiver/amplifier, check that the connections have been made to the “B”  
terminals, and that the “B” speakers are selected to play.  
No sound from one speaker  
• Check that the balance control on your receiver/amplifier is centered.  
• Check the cord connecting the receiver/amplifier to the silent speaker.  
• Disconnect the working speaker from the receiver. Switch the cord of the silent  
speaker from its original receiver terminals to the other set of terminals (that the  
working speaker was originally attached to). If the speaker now works, the  
problem is in your receiver. If the speaker does not work, continue below:  
Remove the cord from the working speaker and connect it to the silent speaker  
and either set of receiver terminals. If the speaker now works, the problem is in  
the original speaker cord. If the speaker does not work, the problem is in the  
speaker.  
One speaker sounds distorted  
Not enough bass or treble  
• Follow the same procedure for the problem of “No sound from one speaker,” as  
outlined above.  
• Check the tonal balance setting on your receiver/amplifier.  
• Adjust the bass and treble controls on the receiver.  
• Check the connections to make sure they are correctly in phase  
(+ to + and – to –). Refer to “Make the connections” on page 6.  
Customer service  
For additional help in solving problems, contact Bose® Customer Service. See the list of  
service centers and phone numbers enclosed in the shipping carton. Bose Corporation will  
make every effort to correct problems within the terms of your warranty.  
Warranty period  
Free Space 51 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 informa-  
tion section, detach, and mail it to Bose.  
Cleaning your speakers  
Use a cloth dampened in mild detergent and water to remove dust or dirt from the outside of  
your Free Space 51 speakers. Or use a hose to rinse them thoroughly with fresh water. Do not  
use enough pressure to force water into the drivers or the acoustic ports.  
8
AM268612_00 _V.pdf • January 10, 2003  
 
Reference  
Protecting the speaker cord  
The bare ends of the speaker cord can be affected by exposure to the elements. This is espe-  
cially true of salt water or water containing chemicals such as chlorine or fertilizer. You may  
use a silicone caulking material, such as RTV adhesive, to protect the connections. It is com-  
monly available at hardware stores. If you do use caulking, apply it only after the cords are  
connected. Check the connections annually, and reapply as needed.  
Technical Information  
Protective features  
• Environmentally resistant hardware  
Driver complement  
• One 4.5" (11.4 cm) environmental driver per speaker  
Color  
• Green  
Dimensions  
• 141  
/
2" (36.8 cm) diameter, 15" (38.1 cm) height  
Weight  
• 12 lb (5.4 kg) each  
Compatibility  
• Compatible with amplifiers or receivers rated 4 to 8 ohms  
• 50W IEC continuous power-handling compatible with receivers and amplifiers rated  
10-100W  
Environmental capabilities  
Designed to withstand:  
• Salt fog, sun, high humidity (rain and snow)  
Temperature extremes (-40°F to 158°F; -40°C to 70°C)  
• Permanent outdoor installation  
Cord recommendations  
Based on maximum frequency response deviation of 0.5 dB  
Gauge  
Length  
18 (0.82 mm2)  
16 (1.3 mm2)  
14 (2.1 mm2)  
12 (3.3 mm2)  
20 ft (6 m) maximum  
30 ft (9 m) maximum  
50 ft (15 m) maximum  
80 ft (24 m) maximum  
Use direct-burial cable for outdoor installations.  
9
AM268612_00 _V.pdf • January 10, 2003  
 
©2003 Bose Corporation, The Mountain,  
Framingham, MA 01701-9168 USA  
268612 AM Rev.00 JN30335  
AM268612_00 _V.pdf • January 10, 2003  
 

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