Elan VSOS User manual

100 WATT HIGH POWER STEREO
VOLUME CONTROL w/OVERRIDE
VMOS
100 WATT HIGH POWER MONO
VOLUME CONTROL w/OVERRIDE
VSOS

US
C
This ELAN Volume Control is NTRL certified to comply
with local building codes. Use Class 2 wiring and methods
per National Electrical Code NFPA70. Install in a Listed
electrical box.

ELAN HOME SYSTEMS INSTALLATION MANUAL
© ELAN Home Systems 2007 • All rights reserved. Page 1
Contents
Introduction .......................................2
Features ..............................................2
Rough-In ............................................3
Wiring ..................................................4
VSOS ...................................................5
VMOS ..................................................5
Impedance Match Settings ................6
Impedance Match Switches ...................7
Page & Doorbell Level Adjustment ....8
Installation .........................................9
Operation ..........................................11
Troubleshooting ................................12
Specifications ...................................13
Warranty ..............................Back Page

ELAN HOME SYSTEMS
Page 2 © ELAN Home Systems 2007 • All rights reserved.
INSTALLATION MANUAL
Introduction
The ELAN VSOS High Power Stereo Volume Control w/
Override is a twelve-step stereo Volume Control with Variable
Impedance Match settings. The VMOS is a High Power mono
Volume control w/ Override conforming to the same specifica-
tions (except stereo capability). This Volume Control is designed
to connect speakers to amplifiers with power ratings up to 100
Watts RMS. Based on proven technology, the VSOS/VMOS
provides a perfect solution when using multiple speakers in high
powered multi-room applications or when basic volume func-
tions are needed with a receiver or amplifier.
Features
• High Power 100 Watts RMS Per Channel
• 1X/2X/4X/8X VSOS
• 2X/4X/8X/16X VMOS
• ELAN’s Patented Volume Control Override
• Limited Lifetime Warranty
• Twelve-Position Volume Steps
• Decora®Styling
• ELAN Quality
• PTC-Thermal Protection Circuit: When the PTC detects
problems such as, too much power crossed speaker wiring, or
improper impedance, the circuit will open, protecting the volume
control. When the problem has been corrected, the circuit will
close and resume operation.

ELAN HOME SYSTEMS INSTALLATION MANUAL
© ELAN Home Systems 2007 • All rights reserved. Page 3
Rough-In
The VSOS/VMOS will fit into the majority of single-gang boxes.
This Volume Control should not be mounted in the same rough-
in box as primary or mains volt devices, i.e. 110v, 240v--this can
cause undesirable noise in the speakers. High-wattage light
dimmers can also cause noise issues.
ALWAYS CHECK LOCAL BUILDING AND
FIRE CODES FOR LOW-VOLTAGE
DEVICE INSTALLATION AND WIRING
REQUIREMENTS.
IN RETROFIT APPLICATIONS, ALWAYS
CHECK FOR OBSTRUCTIONS SUCH AS
PIPES, CONDUIT, OR ELECTRICAL WIR-
ING BEFORE CUTTING DRYWALL.

ELAN HOME SYSTEMS
Page 4 © ELAN Home Systems 2007 • All rights reserved.
INSTALLATION MANUAL
Wiring
Wiring for the VSOS/VMOS consists of speaker wire and CAT5
(if using an ELAN Communications device such as a COM2 or
MAC24). The VSOS/VMOS can accommodate from 14 to 24
gauge speaker wire. Typical installations will use 16 or 18 gauge
stranded copper wire, while longer runs (greater than 80 feet)
should use 14 gauge wires. CAT5 cable should be used for
systems using ELAN’s Volume Control Override features. In-wall
runs should utilize twisted pair wiring. Please consult local build-
ing codes before attempting in-wall wire runs.
DO NOT REVERSE THE AMPLIFIER IN-
PUT AND SPEAKER OUTPUT CONNEC-
TIONS! THIS CAN RESULT IN DAMAGE
TO EQUIPMENT AND/OR PROPERTY.

ELAN HOME SYSTEMS INSTALLATION MANUAL
© ELAN Home Systems 2007 • All rights reserved. Page 5
Impedance
Match Switch
To Speakers
From
Amplifier
PG/DB
Level
Adjust
Volume Control
Override
L6L5L4L3L2L1
R1R2R3R4R5R6
IMPED SWITCH IMPED SWITCH
1X 2X 4X 8X 1X 2X 4X 8X
RIGHT VCO
LEFT VCO
R+ R- SPK L- L+ VC+ VC- R+ R- AMP L- L+
PG/DB
Level
Adjust
Impedance
Match Switch
From
Amplifier
Volume Control
Override
Impedance
Match Switch
To Speaker
PG/DB
Level
Adjust
2X4X8X16X
1 2 3 4 5 6
OVERRIDE VOLUME
VC+ VC- +AMP- -SPKR+
VSOS
VMOS

ELAN HOME SYSTEMS
Page 6 © ELAN Home Systems 2007 • All rights reserved.
INSTALLATION MANUAL
Impedance Match Settings
Switch settings on the VSOS/VMOS determine the Impedance
Match settings. See diagram for position of Override Jumpers.
Switch position depends on three things:
1. The minimum impedance rating of the amplifier being
used.
2. The number of speakers being connected to the
amplifier channel.
3. The nominal impedance of the speakers being utilized.
Once the above information has been determined, use the fol-
lowing equations to determine the correct Impedance Match set-
ting for each specific application. Two equations are necessary:
Impedance Rating of Speakers
# of Speakers Connected to Amp Channel
Minimum Impedance Rating of Amp
System Impedance
= System
Impedance
= Impedance Match
Switch Setting
8 Ohm Speaker
4 Speakers = 2 Ohm System Impedance
8 Ohm Stable Amp
2 Ohm System Impedance = 4 X Switch

ELAN HOME SYSTEMS INSTALLATION MANUAL
© ELAN Home Systems 2007 • All rights reserved. Page 7
Impedance Match Switches
Most speakers are rated at 4, 6, or 8 ohms. If connecting
speakers of different impedances to an amplifier, an average
impedance must be determined; i.e. one pair of 4 ohm speakers
is the equivalent of 2 pair of 8 ohm speakers. All 6 ohm speak-
ers should be entered into the equation as 4 ohm speakers. All
volume controls connected to an amplifier channel should have
the same Impedance Match setting.
VMOS VSOS
Both Switches
MUST be in
Same Position
16X
8X
4X
2X
1X
2X
4X
8X
1X
2X
4X
8X
Never create settings that cause the amplifier to see an imped-
ance below its minimum impedance rating as this can cause
damage to the amplifier.

ELAN HOME SYSTEMS
Page 8 © ELAN Home Systems 2007 • All rights reserved.
INSTALLATION MANUAL
Page & Doorbell Level Adjustment
When utilizing ELAN’s Page and Doorbell features, it will be
necessary to adjust the Page & Doorbell Volume level. Locate
the Page & Doorbell Volume jumpers as shown on the diagram
below. Each jumper MUST be set to the same position or dam-
age to the unit could occur. Test the Page and Doorbell functions
and monitor the audio levels. Adjust shunts higher to increase
Page & Doorbell volume, adjust lower to reduce volume.
MAX
MIN
VMOS VSOS
MAX
MIN
MAX
MIN
Both Jumpers
MUST be in
Same Position

ELAN HOME SYSTEMS INSTALLATION MANUAL
© ELAN Home Systems 2007 • All rights reserved. Page 9
Installation
With the rough-in box installed and speaker wires pulled to the
location, installation can commence. Make wiring connections
first, then mount the Volume Control in the wall.
1. Disconnect amplifier from electricity before
starting.
2. Secure mounting plate to Volume Control with
supplied (2) phillips screws, noting 'TOP' orientation.
3. Strip back 1/4" of the insulation from the endof the
speaker wires.
4. Twist bare wires tightly making sure their are
no frayed wires.
5. Secure each wire from the amplifier to its
respective connector. Use screw terminals
to tighten.
L+ to L+, L- to L-, R+ to R+, R- to R-
6. Next, make connections to the speakers
using the same L +/-, R +/- scheme.
7. Carefully place the Volume Control in the rough-in box
making sure not to put strain on the speaker / amplifier
connections.

ELAN HOME SYSTEMS
Page 10 © ELAN Home Systems 2007 • All rights reserved.
INSTALLATION MANUAL
8. Insert two 1" screws into the mounting holes
of the VSOS/VMOS to mount the unit into the rough-
in box. Tighten these screws until the unit is at the proper
depth to mount flush with the wall.
9. Place Decora cover, noting TOP orientation, at top of face
place insert tab. Swing down bottom and snap into place.
10. Connect speaker wires to amplifier. Make sure
proper polarity is maintained or sound quality
will suffer.
11. Connect amplifier to power and test.
DO NOT CONNECT THE WIRES FROM
THE VOLUME CONTROL TO THE
AMPLIFIER UNTIL THE FOLLOWING
CHECKS HAVE BEEN PERFORMED!
1. With an Ohmmeter, measure the resistance between
the +and -of each pair of wires that is to be connected to the
amplifier's speaker outputs. Under no circumstances should
this reading be below the amplifier’s minimum impedance.
A reading of less than 4 Ohms may mean that the Input and
Output plugs on the Volume Control may have been hooked
up backwards (potentially causing damage to the amplifier).
An open reading may indicate a polarity reversal.
2. Make sure amplifier is not powered up when making connec
tions or testing.

ELAN HOME SYSTEMS INSTALLATION MANUAL
© ELAN Home Systems 2007 • All rights reserved. Page 11
Operation
Once the VSOS/VMOS is connected to both amplifier and speak-
ers, adjustment and testing can occur. When using a receiver
or integrated amplifier with it's own Volume functions, turn the
Volume all the way down. Turn Volume all the way up on the
VSOS/VMOS, then slowly adjust the Volume on the receiver untill
a comfortable listening level is obtained. Leave the receiver's
Volume at that level and adjust Volume from the VSOS/VMOS.
When connected directly to an amplifier, follow the above pro-
cedures, but adjust the amplifier's Gain Control rather than the
Volume knob of a receiver. Once the gain has been established,
no further adjustment should be necessary.

ELAN HOME SYSTEMS
Page 12 © ELAN Home Systems 2007 • All rights reserved.
INSTALLATION MANUAL
Troubleshooting
Symptom Possible Cause Solution
No audio
present
1. Source not
playing
2. Volume turned
all the way down
3. Amplifier/
Speaker con-
nectors reversed
4. Speakers in
room miswired or
defective
Press Play, turn ON etc.
Increase volume
Check and correct con-
nections
a. Test speaker at back of
amplifier
b.Verify connections
Poor
audio
quality
1. Clipping or
distortion
2. Speakers out of
phase
3.Incorrect
Impedance Match
settings
4. Incorrect
assignment of
left/right source
RCA cables or
speaker cables
Reduce Receiver/Ampli-
fier level
Carefully check polarity of
each speaker
See Imp. Match Section
starting on pg.5 and set
switches correctly
Isolate to source or room
and correct

ELAN HOME SYSTEMS INSTALLATION MANUAL
© ELAN Home Systems 2007 • All rights reserved. Page 13
Specifications
Power Rating..........................100 Watts RMS per Channel
Frequency Response.. 20-20 KHz, +/- 0.5 dB into 8 ohms
Total Harmonic Distortion........................................... < 1%
Impedance Setting (VSOS)................Variable 1X/2X/4X/8X
Impedance Setting (VMOS).............Variable 2X/4X/8X/16X
Minimum Speaker Load........................................... 4 ohms
Dynamic Range........................49 dB (Max to Min audible)
Available in White. Trim kits available in White, Ivory, Almond,
Light Almond, Black, and Brown

Limited Lifetime Warranty
ELAN HOME SYSTEMS, L.L.C. (“ELAN”) warrants to the original retail
purchaser that the VSOS-VMOS Volume Control is free from defects in materi-
als and workmanship, provided that the product was purchased from an
authorized ELAN Home Systems Dealer.
If the above purchaser discovers such item was not as warranted above
and promptly notifies ELAN writing, ELAN shall repair or replace the items
at the company’s option. This warranty shall not apply (a) to equipment not
manufactured by ELAN, (b) to equipment which shall have been installed by
other than an authorized ELAN installer, (c) to installed equipment which is
not installed to ELAN’s specifications, (d) to equipment which shall have been
repaired or altered by others than ELAN, (e) to equipment which shall have
been subjected to negligence, accident, or damage by circumstances beyond
ELAN’s control, including, but not limited to, lightning, flood, electrical surge,
tornado, earthquake, or any other catastrophic events beyond ELAN’s control,
or to improper operation, maintenance or storage, or to other than normal
use of service. With respect to equipment sold by, but not manufactured by
ELAN, the warranty obligations of ELAN shall in all respects conform and
be limited to the warranty actually extended to ELAN by its supplier. The
foregoing warranties do not cover reimbursement for labor, transportation,
removal, installation, or other expenses which may be incurred in connection
with repair or replacement.
Except as may be expressly provided and authorized in writing by ELAN,
ELAN shall not be subject to any other obligations or liabilities whatsoever
with respect to equipment manufactured by ELAN or services rendered by
ELAN.
THE FOREGOING WARRANTIES ARE EXCLUSIVE AND IN LIEU OF ALL
OTHER EXPRESSED AND IMPLIED WARRANTIES EXCEPT WARRANTIES
OF TITLE, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
P/N 9900892 REV:B
1300 E. New Circle Rd. Ste. 150 Lexington, KY 40509
www.elanhomesystems.com
®

INSTR, INSTL, VSOS-VMOS
LINEAR P/N 9900892 REV:B
INK: BLACK
MATERIAL: 60 LB WHITE COATED PAPER
SCALE: 1-1
SIZE: 7.000 X 4.500, TOL: +/- .040
FOLDING: ALBUM FOLD CENTER STAPLE
FOLD TO 3.500 X 4.500
PAGES: 16
NOTE: ARTWORK CREATED BY ELAN HOME
SYSTEMS
THIS MANUAL MUST BE ROHS COMPLIANT