Bogen LMR1S is a versatile audio module designed to enhance your sound system with a range of features. It offers input level control via remote potentiometer or direct voltage input, making it flexible for various setups. The module features a balanced input for low impedance microphones and a line mode for high impedance inputs. With its electronically balanced input, you can expect clear and noise-free audio transmission. Additionally, it provides gain control with a trim function, allowing you to fine-tune the input level.
Bogen LMR1S is a versatile audio module designed to enhance your sound system with a range of features. It offers input level control via remote potentiometer or direct voltage input, making it flexible for various setups. The module features a balanced input for low impedance microphones and a line mode for high impedance inputs. With its electronically balanced input, you can expect clear and noise-free audio transmission. Additionally, it provides gain control with a trim function, allowing you to fine-tune the input level.
LMR1S
LMR1S
REMOTE
REMOTE
CONTROL
CONTROL
MIC/LINE
MIC/LINE
IN
IN
1
2
3
LMR1S
Mic/Line Input Module
with Remote Control
Features
• Input level control by remote pot or direct voltage input
• Line mode for high impedance input
• MIC Mode for low impedance input
• Electronically balanced input
• Gain/Trim control with Gain range switch
• Bass and treble
• 24V Phantom power
• Audio Gating
• Gating with threshold and duration adjustments
• Built-in limiter with LED activity indicator
• Fade back from mute
• 4 levels of available priority
• Can be muted from higher priority modules
• Can mute lower priority modules
• Screw terminal input
© 2007 Bogen Communications, Inc.
54-2158-01A 0704
Specifications subject to change without notice.
50 Spring Street, Ramsey, NJ 07446, U.S.A.
201-934-8500; Fax: 201-934-9832
www.bogen.com
4. Gain
Provides control over the level of input signal that can be applied to the internal signal buses
of the main unit. Balances the input levels of various devices so that the main unit controls can
be set to relatively uniform or optimum levels. 18-60 dB Gain range in MIC position, -2 to 40
dB in Line position.
1 6
1. Gate - Threshold (Thresh)
Controls the amount of input signal level neces-
sary to turn the module’s signal output on and
mute lower priority modules. Clockwise rotation
increases the necessary input signal level required
to produce audio output and mute lower priori-
ty modules.
3. Limiter (Limit)
Sets the signal level threshold at which the mod-
ule will begin to limit the level of its output signal. An LED to the left of the knob illuminates
when the limiter is active. Clockwise rotation of the knob will allow more output before lim-
iting, counterclockwise rotation will allow less. The limiter monitors the module’s output sig-
nal, so increasing Gain will affect when limiting takes place.
7. MIC/Line In
MIC/Line level input on screw terminal strip. Electronically balanced input.
5. Treble (Treb)
The Treble control provides +/- 10 dB at 10 kHz. Clockwise rotation provides boost; coun-
terclockwise rotation provides cut. Center position provides no effect.
2. Gate - Duration (Dur)
Controls the amount of time the signal output
and priority muting of the module remains
applied to the main unit’s buses after the input
signal falls below the required minimum signal
level (set by the threshold control).
6. Bass
The Bass control provides +/- 10 dB at 100 Hz. Clockwise rotation provides boost; counter-
clockwise rotation provides cut. Center position provides no effect.
8. Remote Control
Input level can be controlled by direct voltage input or by remote 10K-ohm pot.
LMR1S
LMR1S
REMOTE
REMOTE
CONTROL
CONTROL
MIC/LINE
MIC/LINE
IN
IN
1
2
3
1
3
4
7
2
5
6
8
Block Diagram
CS+
W
GND
INPUT
ATTEN.
+
_
GND
MIC/LINE
INPUT
MIC/LINE
25
WARNING:
Turn off power to unit and make all jumper
selections before installing module in unit.
Jumper Selections
Priority Level
*
This module can respond to 4 dif-
ferent levels of priority. Priority 1
is the highest priority. It mutes
modules with lower priorities and
is never muted. Priority 2 can be
muted by Priority 1 modules and
can mute modules set for Priority
Level 3 or 4. Priority 3 can be
muted by either Priority 1 or 2
modules and can mute Priority 4
modules. Priority 4 modules are
muted by all higher priority mod-
ules. Remove all jumpers for “no
mute” setting.
* The number of priority levels avail-
able is determined by the equipment
the modules are used in.
LINE MIC
PHANTOM
PWR
GATING
ENABLE
BUS
ASSIGNMENT
PRIORITIES
J11
J2
J10
J12
J13
J4
MIC/LINE
SWITCH
LINE LEVEL INPUT
MIC LEVEL INPUT
ON
OFF
PHANTOM
POWER
ENABLED
DISABLED
G ATING
A
BUS ASSIGNMENT
B
BOTH
PRIORITY LEVELS
1234
HIGHEST
LOWEST
Gating
Gating (turning off) of the modules output when insufficient audio is present at the input can
be disabled. Detection of audio for the purpose of muting lower priority modules is always
active regardless of this jumper setting.
Phantom Power
24V Phantom power can be supplied to condensor microphones when jumper is set to ON
position. Leave OFF for dynamic mics.
Bus Assignment
This module can be set to operate so that the mono signal can be sent to the main unit’s
A bus, B bus, or both buses.
MIC/LINE Switch
Sets input gain range for the intended input device. MIC gain range 18 – 60 dB, LINE gain
range -2 – 40 dB.
Remote Control
These configurations use the included wall-mounted remote panel. Up to 2,000 feet of #24
wire can be run from the remote panel to the LMR1S.
Single Conductor Shieldes Remote Connections
The maximum wire run length for this configuration is 200 feet. Use one-conductor shielded
wire for this configuration.
REMOTE
REMOTE
CONTROL
CONTROL
cs+
WIPER
SHIELD
SHIELD
SHIELD
cs+
WIPER
GND
LMR1S Remote Panel
LMR1S Remote Panel
1
2
3
REMOTE
REMOTE
CONTROL
CONTROL
JUMPER FROM CS+
TO WIPER TERMINAL
SHIELD
SHIELD
cs+
WIPER
GND
1
2
3
LMR1S Remote Panel
LMR1S Remote Panel
Two-Conductor Shielded Remote Connections
This configuration is recommended when wire runs up to 2,000 feet are necessary. Use two-
conductor shielded wire for this connection.
Note:
If no connections are made to the remote control, the LMR1S module defaults to 0 dB of
attenuation.
Note:
If no connections are made to the remote control, the LMR1S module defaults to 0 dB of
attenuation.
3 4
Module Installation
1. Turn off all power to the unit.
2. Make all necessary jumper selections.
3. Position module in front of any desired module bay opening, making sure that the module
is right-side up.
4. Slide module onto card guide rails. Make sure that both the top and bottom guides are
engaged.
5. Push the module in to the bay until the faceplate contacts the unit’s chassis.
6. Use the two screws included to secure the module to the unit.
Input Wiring
Balanced Connection
Use this wiring when the source equipment
supplies a balanced, 3-wire output signal.
Connect the shield wire of the source signal
to the "G" terminal of the input. If the "+"
signal lead of the source can be identified,
connect it to the plus "+" terminal of the input. If the source lead polarity cannot be identified,
connect either of the hot leads to the plus "+" terminal. Connect the remaining lead to the minus
"-" terminal of the input.
Note: If polarity of the output signal versus the input signal is important, it may be necessary to
reverse input lead connections.
Unbalanced Connection
When the source device provides only an
unbalanced output (signal and ground),
the input module should be wired with
the "-" input shorted to ground (G). The
unbalanced signal's shield wire is con-
nected to the input module’s ground and
the signal hot wire is connected to the
"+" terminal. Since unbalanced connections do not provide the same amount of noise immunity
that a balanced connection does, the connection distances should be made as short as possible.
MIC/LINE
SOURCE
EQUIPMENT
MIC/LINE
IN
SOURCE
EQUIPMENT
JUMPER WIRE
0
10
20
30
40
50
60
70
80
90
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Attenuation (dB)
Control Voltage Input (Volts DC)
Input level can be controlled by an external DC voltage source, which must be able to supply
up to 1mA of current to the LMR1S. The attenuation level is linear with voltage. 4.5V or
greater = 0 dB of attenuation (full volume) and 0V > 80 dB of attenuation. Distance from the
source should be kept to 200 feet or less.
The CS+ terminal is not used in this configuration.
IMPORTANT: Maximum voltage input should be limited to +10V.
SHIELD
VOLTAGE SOURCE
+ 0 - 5V
REMOTE
REMOTE
CONTROL
CONTROL
1
2
3
Note:
If no connections
are made to the
remote control, the
LMR1S module
defaults to 0 dB of
attenuation (full
volume).
Direct Voltage Control
(Full Volume
@ 0 dB)
3 4
Module Installation
1. Turn off all power to the unit.
2. Make all necessary jumper selections.
3. Position module in front of any desired module bay opening, making sure that the module
is right-side up.
4. Slide module onto card guide rails. Make sure that both the top and bottom guides are
engaged.
5. Push the module in to the bay until the faceplate contacts the unit’s chassis.
6. Use the two screws included to secure the module to the unit.
Input Wiring
Balanced Connection
Use this wiring when the source equipment
supplies a balanced, 3-wire output signal.
Connect the shield wire of the source signal
to the "G" terminal of the input. If the "+"
signal lead of the source can be identified,
connect it to the plus "+" terminal of the input. If the source lead polarity cannot be identified,
connect either of the hot leads to the plus "+" terminal. Connect the remaining lead to the minus
"-" terminal of the input.
Note: If polarity of the output signal versus the input signal is important, it may be necessary to
reverse input lead connections.
Unbalanced Connection
When the source device provides only an
unbalanced output (signal and ground),
the input module should be wired with
the "-" input shorted to ground (G). The
unbalanced signal's shield wire is con-
nected to the input module’s ground and
the signal hot wire is connected to the
"+" terminal. Since unbalanced connections do not provide the same amount of noise immunity
that a balanced connection does, the connection distances should be made as short as possible.
MIC/LINE
SOURCE
EQUIPMENT
MIC/LINE
IN
SOURCE
EQUIPMENT
JUMPER WIRE
0
10
20
30
40
50
60
70
80
90
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Attenuation (dB)
Control Voltage Input (Volts DC)
Input level can be controlled by an external DC voltage source, which must be able to supply
up to 1mA of current to the LMR1S. The attenuation level is linear with voltage. 4.5V or
greater = 0 dB of attenuation (full volume) and 0V > 80 dB of attenuation. Distance from the
source should be kept to 200 feet or less.
The CS+ terminal is not used in this configuration.
IMPORTANT: Maximum voltage input should be limited to +10V.
SHIELD
VOLTAGE SOURCE
+ 0 - 5V
REMOTE
REMOTE
CONTROL
CONTROL
1
2
3
Note:
If no connections
are made to the
remote control, the
LMR1S module
defaults to 0 dB of
attenuation (full
volume).
Direct Voltage Control
(Full Volume
@ 0 dB)
25
WARNING:
Turn off power to unit and make all jumper
selections before installing module in unit.
Jumper Selections
Priority Level
*
This module can respond to 4 dif-
ferent levels of priority. Priority 1
is the highest priority. It mutes
modules with lower priorities and
is never muted. Priority 2 can be
muted by Priority 1 modules and
can mute modules set for Priority
Level 3 or 4. Priority 3 can be
muted by either Priority 1 or 2
modules and can mute Priority 4
modules. Priority 4 modules are
muted by all higher priority mod-
ules. Remove all jumpers for “no
mute” setting.
* The number of priority levels avail-
able is determined by the equipment
the modules are used in.
LINE MIC
PHANTOM
PWR
GATING
ENABLE
BUS
ASSIGNMENT
PRIORITIES
J11
J2
J10
J12
J13
J4
MIC/LINE
SWITCH
LINE LEVEL INPUT
MIC LEVEL INPUT
ON
OFF
PHANTOM
POWER
ENABLED
DISABLED
G ATING
A
BUS ASSIGNMENT
B
BOTH
PRIORITY LEVELS
1234
HIGHEST
LOWEST
Gating
Gating (turning off) of the modules output when insufficient audio is present at the input can
be disabled. Detection of audio for the purpose of muting lower priority modules is always
active regardless of this jumper setting.
Phantom Power
24V Phantom power can be supplied to condensor microphones when jumper is set to ON
position. Leave OFF for dynamic mics.
Bus Assignment
This module can be set to operate so that the mono signal can be sent to the main unit’s
A bus, B bus, or both buses.
MIC/LINE Switch
Sets input gain range for the intended input device. MIC gain range 18 – 60 dB, LINE gain
range -2 – 40 dB.
Remote Control
These configurations use the included wall-mounted remote panel. Up to 2,000 feet of #24
wire can be run from the remote panel to the LMR1S.
Single Conductor Shieldes Remote Connections
The maximum wire run length for this configuration is 200 feet. Use one-conductor shielded
wire for this configuration.
REMOTE
REMOTE
CONTROL
CONTROL
cs+
WIPER
SHIELD
SHIELD
SHIELD
cs+
WIPER
GND
LMR1S Remote Panel
LMR1S Remote Panel
1
2
3
REMOTE
REMOTE
CONTROL
CONTROL
JUMPER FROM CS+
TO WIPER TERMINAL
SHIELD
SHIELD
cs+
WIPER
GND
1
2
3
LMR1S Remote Panel
LMR1S Remote Panel
Two-Conductor Shielded Remote Connections
This configuration is recommended when wire runs up to 2,000 feet are necessary. Use two-
conductor shielded wire for this connection.
Note:
If no connections are made to the remote control, the LMR1S module defaults to 0 dB of
attenuation.
Note:
If no connections are made to the remote control, the LMR1S module defaults to 0 dB of
attenuation.
4. Gain
Provides control over the level of input signal that can be applied to the internal signal buses
of the main unit. Balances the input levels of various devices so that the main unit controls can
be set to relatively uniform or optimum levels. 18-60 dB Gain range in MIC position, -2 to 40
dB in Line position.
1 6
1. Gate - Threshold (Thresh)
Controls the amount of input signal level neces-
sary to turn the module’s signal output on and
mute lower priority modules. Clockwise rotation
increases the necessary input signal level required
to produce audio output and mute lower priori-
ty modules.
3. Limiter (Limit)
Sets the signal level threshold at which the mod-
ule will begin to limit the level of its output signal. An LED to the left of the knob illuminates
when the limiter is active. Clockwise rotation of the knob will allow more output before lim-
iting, counterclockwise rotation will allow less. The limiter monitors the module’s output sig-
nal, so increasing Gain will affect when limiting takes place.
7. MIC/Line In
MIC/Line level input on screw terminal strip. Electronically balanced input.
5. Treble (Treb)
The Treble control provides +/- 10 dB at 10 kHz. Clockwise rotation provides boost; coun-
terclockwise rotation provides cut. Center position provides no effect.
2. Gate - Duration (Dur)
Controls the amount of time the signal output
and priority muting of the module remains
applied to the main unit’s buses after the input
signal falls below the required minimum signal
level (set by the threshold control).
6. Bass
The Bass control provides +/- 10 dB at 100 Hz. Clockwise rotation provides boost; counter-
clockwise rotation provides cut. Center position provides no effect.
8. Remote Control
Input level can be controlled by direct voltage input or by remote 10K-ohm pot.
LMR1S
LMR1S
REMOTE
REMOTE
CONTROL
CONTROL
MIC/LINE
MIC/LINE
IN
IN
1
2
3
1
3
4
7
2
5
6
8
Block Diagram
CS+
W
GND
INPUT
ATTEN.
+
_
GND
MIC/LINE
INPUT
MIC/LINE
LMR1S
LMR1S
REMOTE
REMOTE
CONTROL
CONTROL
MIC/LINE
MIC/LINE
IN
IN
1
2
3
LMR1S
Mic/Line Input Module
with Remote Control
Features
• Input level control by remote pot or direct voltage input
• Line mode for high impedance input
• MIC Mode for low impedance input
• Electronically balanced input
• Gain/Trim control with Gain range switch
• Bass and treble
• 24V Phantom power
• Audio Gating
• Gating with threshold and duration adjustments
• Built-in limiter with LED activity indicator
• Fade back from mute
• 4 levels of available priority
• Can be muted from higher priority modules
• Can mute lower priority modules
• Screw terminal input
© 2007 Bogen Communications, Inc.
54-2158-01A 0704
Specifications subject to change without notice.
50 Spring Street, Ramsey, NJ 07446, U.S.A.
201-934-8500; Fax: 201-934-9832
www.bogen.com
-
1
-
2
-
3
-
4
-
5
-
6
-
7
-
8
Bogen LMR1S is a versatile audio module designed to enhance your sound system with a range of features. It offers input level control via remote potentiometer or direct voltage input, making it flexible for various setups. The module features a balanced input for low impedance microphones and a line mode for high impedance inputs. With its electronically balanced input, you can expect clear and noise-free audio transmission. Additionally, it provides gain control with a trim function, allowing you to fine-tune the input level.
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