GS-FW031 is a two-channel subrack for four-wire communications with programme and external audio inputs. Programme, external audio or four-wire returns can be routed to the outputs, with mix or cut behaviour when talkback is operated.

• Two four-wire circuits and one programme input.
• Transformer-balanced four-wire and programme inputs.
• Front-panel or external microphone with independent gain controls.
• Speak keys with latching, off or momentary modes.
• Relay outputs for external control from the speak keys.