DG-MA
6955 VALJEAN AVE, VAN NUYS, CA 91406
PH: (818)994-6498 / FAX: (818)994-6458
/ www.louroe.comtechsupport@louroe.com
DESCRIPTION
The DG-MA Monitor/Talkback Amplifier is a
companion to Model DG-12II and DG-25III
Alarming Base Stations. It provides two-way
listen/talkback communications between the base
station and the remote speaker/microphones in the
audio system. "All Call" feature allows security
personnel to address all zones simultaneously.
One DG-MA will support up to 10 DG-25III Base
Stations for a total of 250 zones. For audio
systems larger than 25 zones, an external
amplifier is recommended. This will boost "All
Call" capabilities. A hand-held microphone for
talkback and "All Call" is provided. The DG-MA is
standard 19" rack mountable.
APPLICATION
As part of the alarming audio monitoring system,
the DG-MA provides bi-directional communications
with the remote speaker/microphone that are
monitoring:
Stairwells
Elevator Cabs and Lobbies
Public Access Buildings
Parking Structures
Juvenile Detention Centers
When this equipment is used as part of an
audio monitoring system, the law requires
that the public be given notice of AUDIO
MONITORING ON THE PREMISES. A
de cal no tice is in clu ded with ea ch
microphone shipped.
Federal Law References:
Federal Regulations, US Code, Title 18.
Crime and Criminal Procedure, Sec 2510.
IMPORTANT NOTICE
AUDIO
MONITORING
On
These Premises
®
MONITOR/TALKBACK AMPLIFIER
TECHNICAL DATA SHEET
MODEL DG-MA
FEATURES
"
3 Speaker for monitoring audio
1W monitor amplifier with volume control
Headphone jack for private listening
Hand-held microphone for talkback (provided)
"All Call" switch to page all zones
simultaneously. (25 zones max without
external amplifier)
20W output, 70V line
LED indicator when talkback circuit is in use
Input/output jacks for connection to VCR
Input to accommodate up to 10 cascaded
DG-25III Base Stations
SPECIFICATIONS
Monitor output power
Talkback output power
Frequency response
Output impedance to recorder
Power input
Power consumption
Dimensions
Weight
Finish
Shipping Weight
1W into 8
20W into 70V line
100 Hz to 10kHz
600W
120 Vac, 2A, 60 Hz
18W
19 W x 3 ½ H x 10 ½ D” " "
12 lbs
Black anodized
16 lbs
ARCHITECTS AND CONSULTING ENGINEERS SPECIFICATIONS
+
Monitor/Talkback amplifier shall be Louroe Model DG-MA or approved equal
+
It shall contain a 3W audio monitor amplifier, headphone jack, input for talk-back, "All Call,"
push-to-talk switch with in-use LED indicator, input/output jacks for connection to VCR
+
It shall contain a 20W, 70V talkback amplifier with an output jack of 0 dB @ 600 for connecting
an external power amplifier when system consists of over 25 audio zones
+
Unit shall be capable of supporting up to ten cascaded DG-25III Alarming Base Stations
+
Panel shall have built-in 110 Vac power supply
+
Unit to be 19" rack mountable with black anodized finish
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