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:
Features
| Monitor output power | 1W into 8Ω |
| Talkback output power | 20W into 70V line |
| Frequency response | 100 Hz to 10kHz |
| Output impedance to recorder | 600Ω |
| Power input | 120 Vac, 2A, 60 Hz |
| Power consumption | 18W |
| Dimensions | 19”W x 3 ½"H x 10 ½"D |
| Weight | 12 lbs |
| Finish | Black anodized |
| Shipping Weight | 16 lbs |