User manual BOSE 251 ENVIRONMENTAL SPEAKERS

[. . . ] 8 Making the connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Maintaining Your 251TM Speakers Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Warranty period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Customer service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] If you are unsure about installing these speakers, contact a qualified professional installer. Figure 2 Speaker placement guidelines 7 ft (2 m) minimum space between speakers 5 Installing Your 251TM Speakers Choosing the speaker wire Be sure to use the proper gauge (thickness) of speaker wire. Standard zip cord (2-conductor, 18-gauge wire found at electrical and hardware stores) works for most applications. If your speakers will be more than 30 feet (9 m) from the receiver or amplifier, see the "Wire recommendations" under "Technical Information" on page 13. If you decide to run the speaker wire through a wall or underground, check your local building code requirements, or contact an electrical installer before proceeding. Note: Be sure to cut enough wire to reach from the receiver to each speaker. CAUTION: Before making any connections, turn off your receiver or amplifier and unplug it from the outlet (the AC power mains). Installing the mounting brackets The 251TM speakers should be mounted using the supplied brackets. They can be mounted onto the exterior of a house or onto a deck railing or table. If you choose not to use the supplied brackets, be sure to position your 251 speakers on a sturdy surface. CAUTION: If you do not use the supplied brackets, choose a level surface for the speakers. Vibration can cause the speakers to move, so it is important that you install the supplied rubber feet before using the speakers on a surface. Refer to "Attaching the rubber feet" on page 11. Installing the brackets onto the exterior of a house The 251 speakers should be mounted in a vertical position to achieve the best musical performance. Figure 3 illustrates how the mounted speaker will look once the installation is complete. To begin, mark four holes to indicate where you want to install the speaker bracket (Figure 4). For wood, drill four starter holes using a 3/32 inch (2, 5 mm) drill bit (Figure 5). For cement, drill four starter holes using a 1/4 inch (6, 0 mm) drill bit (Figure 5). Figure 3 251 environmental speaker mounted onto the exterior of a house Figure 4 Marking four holes on the exterior of a house Figure 5 Drilling four holes on the exterior of a house 6 Installing Your 251TM Speakers Installing the mounting brackets (cont. ) Installing the brackets onto the exterior of a house (cont. ) For mounting onto wood, install the supplied screws using a Phillips-head screwdriver (Figure 6A). Then, using a Phillips-head screwdriver, install the screws (Figure 6B). Figures 6A and 6B Installing the hardware A. Concrete A. 3 B. /32 inch (2. 25 mm) 1 1/2 inch (2. 25 mm) 1 /4 inch (6. 35 mm) 1 1/2 inch (2. 25 mm) 3 /32 inch (2. 25 mm) 1 1/2 inch (2. 25 mm) 1 /4 inch (6. 35 mm) 1 1/2 inch (2. 25 mm) Installing the brackets onto a deck railing or table The 251TM speakers should be mounted in a vertical position to achieve the best musical performance. Figure 7 illustrates how the mounted speaker will look once the installation is complete. To begin, mark four holes to indicate where you want to install the speaker bracket (Figure 8). Then, drill four starter holes using a 3/32 inch (2, 5 mm) drill bit (Figure 9). Figure 7 251 environmental speaker mounted onto a deck railing or t Figure 8 Marking four holes on a deck railing or table Figure 9 Drilling four holes on a deck railing or table 7 Installing Your 251TM Speakers Installing the mounting brackets (cont. ) Installing the brackets onto a deck railing or table (cont. ) Finally, install the four screws using a Phillips-head screwdriver (Figure 10). Figure 10 Installing the bracket onto a deck railing or table Note: If you are mounting your 251TM speakers on a deck railing or table, you will need to rotate the Bose logo. Refer to "Rotating the Bose logo" on page 11 for instructions on how to do this. Attaching the speakers to the brackets Once the brackets are installed, carefully follow these steps to attach the speakers to the brackets. Finally, temporarily tighten the speaker in a position that will allow you to easily connect the speaker wire (Figures 13A and 13B). Installing Your 251TM Speakers Figure 11 Installing the knobs two full rotations Figure 12 Sliding the speakers into the brackets 8 Installing Your 251TM Speakers Attaching the speakers to the brackets (cont. ) Figures 13A and 13B Temporarily tighten the speakers to the brackets A. Deck railing or table A. B. Making the connections Preparing the speaker wire (not provided) Speaker cord consists of two insulated wires. [. . . ] · If trouble persists, contact your authorized Bose® dealer, who will arrange for service. See the inside back cover of this owner's guide for a list of phone numbers. The bass or treble is weak Only one speaker plays Only one speaker still plays 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. [. . . ]