Boston Acoustics 351 361 381 manual Preparing for Installation, You Will Need

Page 6

Preparing for Installation

Map out the wiring paths from the speakers to the amplifier. We recommend 18-gauge wire for runs up to 25 feet, and 16-gauge or thicker for longer runs. Be sure the speaker wire does not rest or rub against any sharp or pointed objects.

The speakers should be mounted on a flat surface to form a good seal between the speaker flange and the mounting surface.

Each speaker is 8 ohms nominal. When connecting more than two speakers per amplifier channel, you should use series/parallel wiring or line transformers. In all cases, make certain that the total impedance does not fall below the amplifier’s minimum rating. If you are not sure, contact your Boston Acoustics dealer.

Use the cable clamp supplied to secure the speaker wire to the housing. Affix the clamp to one of the screws used to hold the printed circuit board to the housing.

You Will Need

1.A utility knife, electric jigsaw or other means of cutting a hole in the mounting surface.

2.Phillips and flat-blade screwdrivers.

3.A wire cutter or stripper for preparing the speaker wires.

4.An awl or small screwdriver to remove the speaker grille.

With the hardware supplied, the speaker can be installed in existing walls and ceilings from 38" (9.5mm) to 112" (38mm) thick. For thinner walls, you will need to use spacers (not provided) for the mounting bracket. In walls greater than 112" (38mm) thick, you will need longer screws.

Installation

1. Make a cutout using the supplied template.

BostonAcoustics

351

HOLE CUTTING TEMPLATE

Cut hole to exact size of template. For details, see page 6 of installation instructions.

834"

(223mm)

534"

(146mm)

9 78"

(251mm)

BostonAcoustics

361

HOLE CUTTING TEMPLATE

Cut hole to exact size of template. For details, see page 6 of installation instructions.

718"

(181mm)

1134"

(298mm)

BostonAcoustics

381

HOLE CUTTING TEMPLATE

Cut hole to exact size of template. For details, see page 6 of installation instructions.

812"

(216mm)

2.Run wire from the amplifier to the cutout. Allow an extra foot of wire at the cutout. Strip 12" (12mm) off wire, and tightly twist the wire strands.

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Contents 351 361 381 Specifications Introduction361 Installation Instructions351 381Placement Painting the Speakers BostonPreparing for Installation InstallationYou Will Need Install barrier Cloth for ceiling Installations Listening Levels and Power-Handling Limited WarrantyIf Service Seems Necessary