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INSTALLATION
INSTRUCTIONS
FOR WHISPERTOUCH
MODELS DWS-8
These diagrams illustrate a system with
R+
R-
L-
L+
"Daisy Chain"
Wiring
Stereo Amplifier / Receiver capable of handling a
12 VDC Power Supply (Atlas Sound
"Home Run"
Wiring
"MEL" Main Equipment Location
R+ |
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| Connector | Stereo Amplifier / Receiver |
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| Block | capable of handling a |
R- |
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| Stranded |
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18gauge Wiring |
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| Typ: | - | Pair |
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L- |
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Twisted |
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L+ |
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| 12 VDC Power Supply |
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| (Atlas Sound | |
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| Connects to Receiver's |
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| "Switched" AC Outlet |
Each WhisperTouch volume control jumper is at the 2X setting (refer to the impedance chart on front side). The wiring depicts how volume controls can be daisy chained or wired in home run fashion from each volume control to the amplifier.
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| Stranded | |
| Wiring | ||
CONTROL | 18 |
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Twisted |
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| Typ: | Pair | |
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WIRE |
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| CONTROL | Connect additional volume controls | |
| Connect additional volume controls |
| WIRE | |
AMP SUPPLY |
| if desired. Confirm maximum quantity | ||
if desired. Confirm maximum quantity |
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| by referencing the impedance |
| P | by referencing the impedance |
| chart on front side. |
| chart on front side. | |
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| M | ||
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| A |
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| PPLY |
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| SU |
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Mounting Location:
Volume controls should be placed in accessible wall locations that are close to entryways, exits, light switches, or telephones. They may also be ganged with other low voltage* controls such as keypads or infrared repeaters.
*Note: WhisperTouch should not be mounted into the same electrical box used for a
—even if the box says it is partitioned for this pur- pose. Speaker wires may pick up electrical noise which will be transmitted as a buzzing or popping sound to the loudspeakers.
Mounting Requirements:
Switched WhisperTouch units are slightly taller, wider, and deeper than most volume controls and requires a 20 cu in. E.O. box with a minimum inside depth of 2.75" and a minimum inside height of 2.985". Recommended boxes for new construc- tion include: Carlon PVC switch box
Calculating the proper Impedance settings for the system:
WhisperTouch is an
To determine which setting should be used (1X, 2X, 4X and 8X) you will need to know the number of loudspeaker pairs, the loudspeaker impedance, and the load capability (output impedance) of the amplifier. Most amplifiers will handle a load down to four or two ohms with some going as low as 1 ohm.
Using the chart on page one; cross reference the number of loudspeaker pairs to the amplifier imped- ance. Notice that the 4X jumper setting will allow twice as many loudspeaker pairs.
Example: If you have 8 pairs of
Changing Impedance Jumpers:
Once the proper impedance setting is determined, locate the impedance jumpers (black plastic mod- ules) on the back side of the circuit board. One jumper is for the right channel, the other for the left. Next, locate the 1X, 2X, 4X and 8X settings on the circuit board for each channel. If the settings are correct, continue to the next step. If the settings need to change, simply slide the jumper modules off and reinstall them on to the correct two pins.
Limitations:
WhisperTouch limits the degree of impedance match- ing to eight times so that music quality and overall performance is not sacrificed. We do not recommend that any quality,
Prewiring and Installation:
A.Mount the outlet box or plaster ring in the wall (see mounting requirements). Each room’s wiring can be individually run back to the amplifier (home run) or connected from one room to the other (daisy chain). The daisy chain wiring method con- nects one set of speakers with volume control in parallel to the next, using connection block or crimp connectors in between. This method has the advantage of requiring less wiring for the system
With either method, be sure to mark the cable con- nected to the amplifier as [INPUT] and write down the color codes you have designated for the left channel, right channel, positive, and negative leads and the (+) and
B.If using the "Home Run" wiring method, each rooms speaker/volume control wiring should be individually run back to the Main Equipment Location "MEL" in a
Note: Many building and fire codes require cable to be
C.Next, run a
D.Cut the cable accordingly, allowing enough cable to hang outside the outlet box, to properly connect the
volume control. Tuck the cable back into the outlet box to prevent damage during drywall installation.
E. If desired, the terminal block may be removed from the volume control to more easily accomodate wiring. Strip 1/4" of insulation off each conductor and insert the wires into the terminal block. Tighten the terminal block screws frimly and
F.The WhisperTouch
Qty of DWS-8 x 100mA = power supply mA rating.
EXAMPLE: A system with nine
G.Tuck the excess cable from inside the outlet box back out into the wall or fold wires carefully while inserting the volume control into the outlet box. Position the volume control so that the front bracket lines up with the mounting holes on the box. In some cases, WhisperTouch may be a tight fit requiring it to be inserted on the right side of the outlet box and then slid left into the center position.
Note: In retrofit applications, metal extension plates and
H.Secure unit with supplied screws. We recom- mend loosening the screws 1/4 turn to allow 1/4" movement
I.Mount the cover plate and tighten the screws.
Testing and operating the on/off feature:
A.Turn on the receiver that powers WhisperTouch.
B.The red indicator light on the WhisperTouch should turn on, but music will not be playing.
C.Press the On/Off button once. The green indica- tor light will turn on and music will begin playing.
D.Adjust the volume.
E.Press the On/Off button again to turn off the music in that room.
*References to WhisperTouch® on this this install sheet apply only to model
Specifications subject to change without notice
1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A. / TELEPHONE: (800)
© 2001 Atlas Sound LP | Printed in U.S.A. | 000801 | PN 389525 |