OSD Audio VMS100 Owner's manual

VMS100
OSD Audio
Brand
OSD Audio
Model
VMS100
Category
Holders
Type
Owner's manual

OSD Audio VMS100 is a versatile impedance matching slider stereo volume control designed to prevent overloading and damaging amplifiers by ensuring the speaker system's impedance matches or exceeds the amplifier's impedance. It features multiple switch settings to accommodate various speaker configurations, allowing you to connect up to 16 pairs of 8-ohm speakers with ease. Installation is straightforward, with clear instructions for connecting the input and output cables. The VMS100 is backed by OSD Audio's five-year limited warranty, ensuring your peace of mind.

OSD Audio VMS100 is a versatile impedance matching slider stereo volume control designed to prevent overloading and damaging amplifiers by ensuring the speaker system's impedance matches or exceeds the amplifier's impedance. It features multiple switch settings to accommodate various speaker configurations, allowing you to connect up to 16 pairs of 8-ohm speakers with ease. Installation is straightforward, with clear instructions for connecting the input and output cables. The VMS100 is backed by OSD Audio's five-year limited warranty, ensuring your peace of mind.

L+ L- R- R+
INPU T
OUTPU T
INPU T
OUTPU T
L+ L- R- R+
L+ L- R- R+
L+ L- R- R+
RECEIVER/AMPLIFIER
SPEAKER OUTPUTS
L+ L- R - R+
2x 4x 8x 16x
2x 4x 8x 16x
No. of 8 ohm pairs
Switch Settings
1-2
3-4
5-8 9-16
2x 4x
8x
16x
Installation Instruction for the VMS-100
The VMS-100 is simple to install. Pay attention to the following steps:
- Red/Black = right speaker Red = positive [ + ] Black = ground [ - ]
- White/Green = left speaker White = positive [ + ] Green = ground [ - ]
OSD AUDIO • 1405 Pioneer Street • Brea • CA 92821 • www.osdaudio.com
A U D I O
OSD
To prevent from overloading
and damaging the amplifier,
the switch must be set
correctly to match the
impedance of the speaker
system to a level equal to or
greater than the impedance
of the amplifier.
Find out the minimum impedance of the amplifier. This
information may be found in the manual or on the back of
amplifier, near the speaker terminals. It is measured in
ohms.
Determine the correct switch setting using the chart
below.
Figure out the total number of speaker pairs to be used.
Set the switch. Make sure that each volume control’s
switch setting is consistent throughout the whole system.
Make sure to use the integral strain reliefs where appropriate when
routing the cable in the J-box.
Strip the insulation off the end of each of the eight individual wires
( four from the amplifier and four to the speakers ) at about 1/4”.
Twist exposed ends together.
Connect the speakers wires to the connector labeled Output
L [ + , - ] and R [ + , - ]. Speaker wires typically use the
following color configuration.
Insert the volume control into the J-box. Mount carefully, making
sure that no wires are pinched or shorted.
VMS-100 Slider
Impedance Matching Slider Stereo Volume Control
Mark the input and output cables accordingly for easy installation.
OSD Audio will repair or replace any defect in material or workmanship which occurs during normal use of this product with new or rebuilt parts,
free of charge in the USA, for five years from the date of original purchase. This warranty does not cover damages in shipment, failures caused by
other products not supplied by OSD Audio or failures due to accident, misuse, or alteration of the equipment. This warranty is extended only to the
original purchaser, and a purchase receipt, invoice, or other proof or original purchase date will be required before warranty repairs are provided.
Mail in service can be obtained during the warranty period by emailing [email protected]. A Return Authorization (RMA) number must be
obtained in advance and be marked on the outside of the shipping carton.
This warranty gives you specific legal rights, and may have other rights ( which vary from state to state ). If a problem with this product develops
during or after the warranty period please contact OSD Audio, your dealer, or any factory-authorized service center.
OSD Audio Limited Warranty
Connect the leads from amplifier to the volume control connector
according to the labeled Input L [ + , - ] and R [ + , - ].
1.
2.
3.
4.
1.
2.
3.
4.
5.
6.
7.
2x 4x 8x 16x
INPU T
L+ L- R- R+
OUTPU T
L+ L- R- R+
Input
Outp ut
1
®
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OSD Audio VMS100 Owner's manual

VMS100
OSD Audio
Brand
OSD Audio
Model
VMS100
Category
Holders
Type
Owner's manual

OSD Audio VMS100 is a versatile impedance matching slider stereo volume control designed to prevent overloading and damaging amplifiers by ensuring the speaker system's impedance matches or exceeds the amplifier's impedance. It features multiple switch settings to accommodate various speaker configurations, allowing you to connect up to 16 pairs of 8-ohm speakers with ease. Installation is straightforward, with clear instructions for connecting the input and output cables. The VMS100 is backed by OSD Audio's five-year limited warranty, ensuring your peace of mind.

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