Valcom Clarity SM120 Manual

RACK MOUNT 120 WATT AMPLIFIER
INTRODUCTION
These instructions contain the specifications and
information necessary to install, operate and
maintain the SM120, 120 Watt Mixer-Amplifier.
The SM120 provides up to 120 Watts of audio
power for voice paging or background music
systems.
SPECIFICATIONS
Access Methods

Paging and Sound Reinforcement Systems

Stand Alone Background Music Systems
Features

Active mix or Priority override on inputs
(override is voice operated)

Rack Mount

Mic 1/Tel on Input 1, plus 3 standard
MIC/AUX inputs

Volume control for each input

Master Volume, Bass and Treble Controls

Overload limiting circuit protection

Screw terminals for all connections

Power "ON" indicator

Clipping and Fault indicators

8 Ohm, 25 and 70 Volt selectable output

Tone generator (Warble or Continuous)

Optional external volume control
Dimensions and Weight

17.0" W x 12.0" D x 1.75" H
(43.23cm W x 30.5cm D x 4.4cm H)

Weight: 5.1 lbs. (2.3 kg)
Nominal Specifications
Wattage Output
Type Outputs
Frequency Response
Distortion < 2% @ 1kHz Rated Output
Number of Inputs
Voice Switch Sensitivity
Mic Input Impedance
Mic Input Sensitivity
Tel Line Input Impedance
Tel Line Sensitivity
SM120
120 Watts Peak
8 Ohm or 25V or 70V
20 to 20kHz +/-2dBm
4 (1 Mic/Tel Line,
3 Mic/Aux)
31dBm
600 Ohms Balanced
1.0mVRMS
600 Ohms
70mVRMS
1
Aux Input Impedance
Aux Input Sensitivity
Line Out Impedance
Line Out Level
Nominal Power Requirements
Input Voltage:
Current @ 120VAC:
Environment
Temperature 0 to +40° C
Humidity
Precautionary Designations

WARNING-To Reduce The Risk Of Fire Or
Electric Shock. Do Not Expose This
Apparatus To Rain Or Moisture.
•
AVERTISSEMENT - Afin de réduire les
risques d'incendie ou de décharge
électrique, évitez d'exposer le système à
la pluie ou à l'humidité.
•
Apparatus shall not be exposed to
dripping or splashing and no objects filled
with liquids, such as vases, shall be
placed on the apparatus.
• L'appareil ne doit pas être exposé à des
égouttements et éclaboussures et aucun
Objet Rempli de liquide, comme vase, ne
doit être place sur l'appareil.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: To reduce the risk of electric shock,
Do not remove cover.
No user serviceable parts inside.
Refer servicing to qualified service personnel.
This symbol indicates that dangerous
voltage constituting a risk of electric
shock is present within this unit.
This symbol indicates that there are
important operating and maintenance
instructions in the literature accompanying
this unit.
Issue 4
10K Ohms
200mVRMS
10K Ohms
1VRMS
85-265VAC
0.28A Typical
+32° to +104° F
0 to 85% non-precipitating
947602