Paradigm SIG-LCR 5 v.3 User Manual download pdf (Page 5)

INSTALLING THE BACKBOX

(continued)

Use an appropriate amplifier. At high volumes, a very powerful amplifier

can overdrive speakers and damage them. On the other hand, if the amplifier

isn’t powerful enough, it can produce clipping distortion that can easily

damage high-frequency drivers.

(See Dealer for more information.)

Don’t be fooled by the amplifier’s volume control. It adjusts listening

level—it does not indicate power output. If the speakers begin to sound

harsh or grating, or if you hear the bass breaking up, turn the volume down

immediately or you will damage the speakers! This type of damage

constitutes abuse and is not covered by warranty!

Tone controls and equalizers can demand even more power from an

amplifier, lowering the point at which it produces clipping distortion. Use

them sparingly, if at all, and do not use them when listening at loud levels.

HOW TO AVOID SPEAKER DAMAGE

You are now ready to pre-wire the backbox for speaker installation at a

later date. For optimal sound reproduction, the use of high-quality speaker

cable is essential.

Use only cable that is rated for in-wall use:

• The UL standard is CL2, CL3 and CM

• The CSA standard is FT4

Determine the length of cable you will need to run from the backbox along

the wall to the amplifier.

Connect one cable length to the red (+) backbox terminal and the other

length to the black (-) backbox terminal. Make sure wires are firmly

fastened at the backbox end. Fasten cable to box with wire tie

(optional).

Run cable along backbox and through cable loop, see Figs. 3 (b) and 4 (b),

then route the cable to the approximate area where the amplifier will be

located. In areas where cable runs along the backbox, we recommend

adding a layer of damping material to prevent cable rattling or vibrating

later while speakers are playing.

IMPORTANT! Correct polarity or phase is critical for proper stereo imaging

and bass performance. At the amplifier end and before drywalling, be sure

to clearly identify

which cable leads to which backbox terminal. Once

drywalling is complete, you will not be able to go back and verify.

PRE-WIRING THE BACKBOX (Fig. 7)

Leave the masonite cover attached when installing backbox. It prevents dust

and dirt from entering the box. Do not remove until ready to install speakers.

INSTALLING BX-LCR 3 (backbox) for SA-LCR 3 (speaker)

INSTALLING BX-LCR 5 (backbox) for SIG-LCR 5 (speaker)

THE MASONITE COVER

INSULATING THE CAVITY BEHIND THE WALL

Vertical Installation

The BX-LCR 3 backbox is designed to fit vertically between two standard

2˝ x 4˝ (or 2˝ x 6˝) wall studs on 16˝ centers. See Fig. 3 for detailed instructions.

Horizontal Installation

The BX-LCR 3 backbox will NOT fit horizontally between studs

centered on 16˝. A “window-frame-style” rough-in at the pre-construction

stage is required. See Fig. 3 for detailed instructions.

While the backbox provides a moderate reduction in the amount of acoustic

bleed-through to adjacent rooms, we strongly recommend placing damping

material in the entire wall on which the speakers are installed

(not shown

and not included)

. For optimal bass response, damping material should be

evenly spaced across the wall cavity

DO NOT add damping material to

the area directly behind the backbox.

(See Dealer for recommendations on

the type of insulation best suited to reduce acoustic bleed-through.)

Vertical and Horizontal Installation

The BX-LCR 5 backbox will NOT fit vertically

horizontally between

studs centered on 16˝. A “window-frame-style” rough-in at the pre-

construction stage is required. See Fig. 4 for detailed instructions.

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Paradigm SIG-LCR 5 v.3 User Manual Page 5

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