Simultaneously, the AFDS2 automatically transfers operation to the standby amplifier, with no perceptible loss of signal. Once the trouble is corrected, operation is restored to the main amplifier. This ensures that page announcements and music are audible even during periods of high noise levels. When the signal is boosted, the frequency response is shaped so that speech articulation becomes more intelligible. The shaped response also eliminates distortion in music reproduction.
Additional microphones are available.
The system uses 2-conductor AWG20 wire and can reach 2000 feet with no appreciable signal loss. The VAR1 Voice Activated Relay is a DPDT relay device which is activated when an audio signal is detected at the microphone preamp or at the 70V, 25V or 600 W line level inputs. Shipping weight 2 lbs. The front panel acts as a plaster ring. Controls are accessible via a tilt open door that may be locked.