Jobsite V-12M User manual

12 STEP MUTING WALL MOUNT VOLUME CONTROL
V-12M
For Precise Volume Adjustment
with Programmable Muting
in Any Room
INSTALLATION & USER GUIDE

V-12M
12 STEP MUTING WALL MOUNT VOLUME CONTROL
TABLE OF CONTENTS
Features............................................................................................................................1
Product Overview...........................................................................................................2
Package Contents ..........................................................................................................3
Preparing for Installation..............................................................................................3
Installation.......................................................................................................................4
Operation..........................................................................................................................6
Programming Muting Volume Controls......................................................................7
Specifications.................................................................................................................7
Warranty...........................................................................................................................8

1
FEATURES
nIncludes both Decora®style and standard faceplates
nProgrammable circuit mutes selected speakers upon system turn-on
nSafely connect up to eight speaker pairs to a single amplifier or receiver
nUL listed to comply with local building codes
nStylish indicator knob
n12 step make before break volume control switch design
Installation friendly design:
nAccepts up to 14-gauge wire
nSnap and lock connector secures wire in place without the use of a screwdriver

PRODUCT OVERVIEW
2
(a) Electrical Box
(b) Speaker Wire
(c) V-12M Volume Control (supplied)
(d) Snap-on Color Insert (supplied)
(e) Knob (supplied)
(f) Device Screws (2 supplied)
(g) Decora® style Wallplate (supplied)
(h) Faceplate Screws (2 supplied)
b
c
d
e
f
g
h
a
Figure 1

3
PACKAGE CONTENTS
nV-12M volume control x 1
nSnap-on Decora®style color insert x 1
nBlank Decora®style wall plate x 1
nStandard wall plate x 1
nKnob x 1
nDevice mounting screws x 2
nFaceplate screws x 2
n
nSnap and Lock removable speaker connectors x 2
PREPARING FOR INSTALLATION
V-12M
If you are installing the V-12M into an existing wall,
take time to consider any possible obstructions which
may be hidden inside the wall, such as wood or metal
studs, electrical, telephone or other types of wiring,
plumbing, AC or heating conduit. Count the number of
pairs of 4 ohm speakers and the number of pairs of 8
ohm speakers you are connecting. Count pairs of 6
ohm speakers as 4 ohm pairs. Determine the correct
switch position from the impedance charts below.
See figures 2, 3 and 4.
Figure 2 Figure 3 Figure 4

4
Using Speaker Selectors with IM
Muting Volume Controls
We recommend using the JobSite V-T4M muting
volume control connection terminal to connect the
V-12M and V-12M/AWE muting volume controls to a
system. If you choose not to use a V-T4M
connection terminal, you must provide 12 volts to
each muting volume control for the muting circuit to
work. We do not recommend using Speaker
Selectors with Muting Volume Controls.
The programmable muting feature serves the same
purpose as an On/Off switch on a Speaker Selector
Tools Required
n1/8" Slotted screwdriver
n1/4" Slotted screwdriver
nNo.2 Phillips screwdriver
nWire stripper
nWire labels
INSTALLATION
V-12M
1. Identify the Speaker wire, V-T4M connection
terminal wire and 12V wire. Label the wires for
future reference.
2. Strip 1/4" of insulation from the end of each wire.
Tightly twist the end of each wire until no frayed
ends remain.
3. Locate the Snap and
Lock connectors and
remove them if they are
plugged in. See figure 5.
4. Use a small flathead
screwdriver or your
thumb to raise the locking
tabs, exposing the holes on the connector.
5. Insert each wire into the appropriate hole and
snap down the locking tabs.
Figure 5

6. Insert the smooth side of the connector plug into
the smooth side of the V-12M socket.
7. Locate the 2-pin 12V connector.
8. Insert each 12V wire into the appropriate hole
on the connector. See figure 6.
9. Use a small flathead
screwdriver to tighten
the screws in place.
10. Install the V-12M into
the device ring.
11. Set the Impedance
Magnification Switch as
determined by the impedance charts.
12. Set the switches, on all of the controls, to the
same position (1x, 2x, 4x, or 8x).
13. Attach the cover plate.
See installation diagram.
INSTALLATION DIAGRAM
Speakers
Stereo Receiver
V-12M
V-12M
Side View
Output to
Speakers
Input From
Amplifier
V-T4M
12V DC Power Supply Plugged
into an Unswitched AC Outlet
5
Figure 6

6
OPERATION
1. Make sure the amplifier or receiver power is OFF
and set the volume to minimum.
2. Set the volume on the volume control to maximum
(fully clockwise).
3. Turn ON the amplifier or receiver and select a
source, such as the tuner or CD player.
4. Slowly turn up the amplifier or receiver volume
and set it to a comfortable – not maximum –
listening level. Don’t overdrive or “clip” your
amplifier. If the sound becomes muddy or
distorted, you have reached the limit of your
amplifier’s volume capability. Reduce the volume
at once to avoid damaging your speakers.
5. JobSite Muting Volume Controls come from
the factory pre-programmed in the automatic
mute mode. When the Amplifier turns on, you
should see the Mute Button on the volume
control, light up Red. No sound will be present in
the Mute mode.
6. To turn ON the speakers in a room, tap the Mute
Button, on the Volume Control, once. The Mute
Button will change from Red to Green. Adjust the
volume of the speakers to the desired listening
level using the volume control knob. If all the
speaker pairs in your system are equipped with
JobSite volume controls, you can set the amplifier
or receiver volume at one position and use the
JobSite controls exclusively.
7. To turn OFF the speakers in a room, tap the Mute
button, on the Volume Control, once. The Mute
button will change from Green to Red and the
speakers will turn off.

7
PROGRAMMING MUTING VOLUME
CONTROLS
You can program individual JobSite Muting Volume
Controls, allowing certain locations (such as the
guest bedroom and porch) to remain muted when
system turns on, while other locations (such as the
kitchen and family room) play music.
Place the volume control in the desired turn-on
state (muted or unmuted) by pressing the mute
button. Then press and hold the mute button for
10 seconds. The LED blinks to indicate that
programming has occurred.
JobSite Muting Volume Controls come from
the factory pre-programmed in the automatic
mute mode
SPECIFICATIONS
High power rating:
100 watts per channel RMS, 200 watts peak
Adjustable impedance:
1x, 2x, 4x, 8x settings
Total attenuation:
54dB maximum
Wiring requirements:
2 individual runs of 2-conductor 14-18-gauge
speaker wire or 1 run of 4 conductor.
1 run of two conductor wire for muting control,
originating from the V-T4M.
V-T4M muting volume control connection terminal
recommended
Mounting:
Fits most single gang junction boxes
Dimensions:
1-5/8" wide x 2-5/8" high x 2-9/16" deep
Depth behind faceplate:
2-9/16"
Warranty: 2 year limited

8
LIMITED WARRANTY
JobSite Systems (“JOBSITE”), a Niles Audio
Corporation company, warrants its passive products
(those not requiring AC or battery power) to the
original purchaser to be free of manufacturing
defects in material and workmanship for a period of
ten years from date of purchase.
JOBSITE warrants its passive loudspeaker products
(those not requiring AC or battery power) to the
original purchaser to be free of manufacturing
defects in material and workmanship for a period of
five years from date of purchase.
JOBSITE warrants its indoor/outdoor loudspeaker
products to the original purchaser to be free of
manufacturing defects in material and workmanship
for a period of two years from date of purchase.
JOBSITE warrants its all weather rock loudspeaker
products to the original purchaser to be free of
manufacturing defects in material and workmanship
for a period of five years from date of purchase.
JOBSITE warrants its active products (those
requiring AC or battery power) to the original
purchaser to be free of manufacturing defects in
material and workmanship for a period of two years
from date of purchase.
This Warranty is subject to the following additional
conditions and limitations. The Warranty is void and
inapplicable if JOBSITE deems that the product has
been used or handled other than in accordance
with the instructions provided by the manufacturer,
including, but not limited to, damage caused by
accident, mishandling, improper installation, abuse,
negligence, or normal wear and tear, or any defect
caused by repair to the product other than by
JOBSITE or an authorized JOBSITE wholesale
distributor.

9
To obtain warranty service, you must write to
JOBSITE: Include your name, address, telephone
number, model number and serial number of your
unit, and a brief description of the problem.
A factory Return Authorization Number will be
sent to you. DO NOT RETURN ANY UNIT WITHOUT
FIRST RECEIVING WRITTEN AUTHORIZATION
AND SHIPPING INSTRUCTIONS FROM JOBSITE.
If the above conditions are met, the purchaser’s
sole remedy shall be to return the product to
JOBSITE, in which case JOBSITE will repair or
replace, at its sole option, the defective product
without charge for parts or labor. JOBSITE will
return the unit repaired or replaced under warranty
by shipping it by its usual shipping method from the
factory (only) at its expense within the United States
of America. THERE ARE NO OTHER WARRANTIES,
INCLUDING, WITHOUT LIMITATION, EITHER
EXPRESS OR IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE, WITH RESPECT TO THE
PRODUCT.
REPAIR OR REPLACEMENT AS PROVIDED UNDER
THIS WARRANTY IS THE EXCLUSIVE REMEDY OF
THE CONSUMER/PURCHASER. NILES SHALL NOT
BE RESPONSIBLE FOR ANY INCIDENTAL OR
CONSEQUENTIAL DAMAGES EXCEPT TO THE
EXTENT PROVIDED (OR PROHIBITED) BY
APPLICABLE LAW.
Some states do not allow the exclusion or limitation
of incidental or consequential damages, so the
above limitation may not apply to you. This warranty
gives you specific legal rights, and you may also
have other rights, which vary from state to state.
For the name of the nearest authorized JOBSITE
wholesale distributor, contact:
JobSite Systems
12331 S.W. 130 Street, Miami, Florida 33186
WWW.JOBSITESYSTEMS.COM

JOBSITE SYSTEMS
12331 S.W. 130 STREET, MIAMI, FLORIDA 33186
P 866.4JB.SITE (866.452.7483) – F 305.238.0185
WWW.JOBSITESYSTEMS.COM
© 2004 JobSite Systems. All rights reserved. JobSite, Pure Custom and Niles are registered trademarks of Niles Audio Corporation and the JobSite Logo
is a trademark of Niles Audio Corporation. All other trademarks are the property of their respective owners. Some JobSite products (or components
thereof) are manufactured under one or more U.S. Patents, foreign equivalents and/or pending patents (see product for details). Because we constantly
strive to improve our products, JobSite reserves the right to change product specifications, descriptions, and prices without notice. The technical and
other specifications of information contained herein are not intended to set forth all technical and other specifications of JobSite products. Additional
information can be obtained at WWW.JOBSITESYSTEMS.COM or by calling JobSite at 866.452.7483. Printed in China. 7/04 DS00396BCN