Bose VIRTUALLY INVISIBLE 191 User Manual download pdf (Page 22)

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EFERENCE

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Accessories that can help

For installation in a drop ceiling (where tile is installed below the ceiling joists), Bose offers an

optional Drop Ceiling Kit for two speakers. It protects the tile from bearing the weight of the

speakers. Instructions are included with the kit.

For installation in new construction, Bose offers a Rough-in Kit for two speakers. It is

designed for use after the studs are in place and before the wallboard is added to reserve a

place for the speakers and indicate where the wallboard hole should be made. It also 

protects the wallboard by providing additional support for the dogleg clamps that secure the

speaker to the wall. Instructions are included with the kit.

For more information or to order an accessory, contact your Bose dealer. Or, to contact Bose

directly, refer to the address list included in the carton.

Using speaker cord

Before you cut any cord, estimate how much will be needed by measuring the distance from

the receiver/amplifier to where each speaker will be installed. Make some allowance if the

cord must go around corners or through walls, and leave at least 14 in. (36 cm) of cord to pull

from the wall for making the connections easily. Allow extra length if you are installing ceiling

speakers, so that you can make connections while standing on the floor.

Wire recommendations

Gauge Maximum Length

18 AWG (0.82 mm

)

20 ft (6 m)

16 AWG (1.3 mm

)

30 ft (9 m)

14 AWG (2.1 mm

) 50 ft (15 m)

Preparing the speaker cord

Speaker cord consists of two insulated wires. The insulation around one wire is marked

(striped, collared, or ribbed) to identify it as positive. The other wire is negative.

Note:

It is sometimes difficult to distinguish wire markings. Inspect both wires carefully.

1. Strip approximately

inch (13 mm) of insulation from both wires. You will need a wire

cutter and wire stripper for this work.

2. Twist the bare end of each wire so loose strands will not touch across terminals.

Be sure to connect each wire to the proper terminal, positive to positive (+) and negative to

negative (–).

Before the wallboard goes up

There are some standard guidelines for working in unfinished construction.

• Begin this work after the studs and joists are in and the electrical wiring is completed.

• Snap a chalk line across the face of the studs or the bottom of the joists and move 

backward as you drill, so you can keep the last hole drilled in your line of sight.

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