*Designed to reproduce voice signals so that the message will be clear and understandable through high ambient noise levels such as gun positions and machinery spaces.
*Volume is adjustable at the front panel. Audio levels can be reduced by 24 dB in five equal 6 dB steps.
* Amplifier supplies amplified signals to speakers and headsets at the associated position. Signals from the position to the command post are transmitted directly at the sound powered telephone level.
*Direct communication at the sound powered telephone level (no amplification) is maintained when the amplifier is not operating, the press-to-talk switch of a local sound powered telephone headset is closed, power is interrupted, a sensitive switching circuit fails, or when the amplifier is removed from its enclosure.
*Uses a plug-in circuit card for easy repair / replacement.