Legrand AU0100-WHLA-V1 Manuel d'utilisateur télécharger pdf (Page 2)

301 Fulling Mill Road, Suite G

Middletown, PA 17057

Phone (800) 321-2343 / Fax (717) 702-2546

www.onqlegrand.com

Page 2 of 3

INSTRUCTION/INSTALLATION SHEET

Speaker Level / Impedance Matching

olume Control

IS-1507094 REV. O

accommodate up to 14 gauge wire.

2) A single 16/2 speaker wire should be run from each speaker location to the outlet box or low voltage

bracket at the volume control location.

B. “Trim-out” steps:

1) Strip 3/16ths of an inch from all conductors (feed from distribution and

runs to speakers) and insert the wires into the wiring blocks (see

Figure 3) of the volume control.

2) Tighten screws onto wire and give them a tug to insure they are

properly fastened.

NOTE: BE SURE NOT TO REVERSE THE AMPLIFIER OR SPEAKER

CONNECTIONS OR DAMAGE TO THE AMPLIFIER COULD RESULT!

3) Install the volume control into the low voltage bracket/electrical box.

4) Determine how many pairs of speakers will be powered by the same amplifier (in parallel).

5) Determine the speaker output impedance or ohm capability of the amplifier (typically 8 ohms, 4 ohms or 2

ohms). This will be listed in the specification of the amplifier. It yields how "low" of a load the amplifier can

safely run before damage or over heating occurs.

NOTE: Impedance varies with

frequency, so in actuality, no

load is seen as a constantly

stable (8, 4 or 2 ohms), it

varies as frequency varies.

(This is why some of the

higher selections were made

in the Multiplier chart.),(see

Figure 4).

NOTE: This chart refers to 8

ohm speakers. If the Speakers

being used are some other

impedance, you must

calculate the parallel

impedance and multiply it by

the appropriate multiplier (X2,

X4 or X8), see Figure 4, to

match the load to the

amplifier’s capabilities. Non-

impedance matching=X1 (see

Figure 5 for the formula to

calculate impedance).

Figure 3

Figure 4

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Legrand AU0100-WHLA-V1 Manuel d'utilisateur Page 2

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