SIMPLE TALKBACK SYSTEM

The GS2U-004 & GS2U-003 are a simple two part talkback system originally designed for a vehicle installation.

The GS2U-004 is simply the talkback panel where two independent inputs are fed to two monitoring front panel loudspeakers and a front panel stalk microphone can be used to talk to the four different talkback outputs of the GS2U-003. When any of the front panel talkback switches are pressed the loudspeakers are dimmed. 

The GS2U-003 is the mixer/ switcher for controlling which source is fed to which talkback output. It has four talkback outputs each with a master level control and a simple led column ppm for monitoring level. Three of the outputs are derived from seven inputs (one of which is the mic from the GS2U-004), each of these inputs has an individual gain control and cut switch for each output. The fourth output is derived from four inputs (one of which is the mic from the GS2U-004) and two of which are inputs that are only fed to this output.
The GS2U-003 is constructed in a modular way such that different ratios of the four or seven input cards could be accommodated.

The GS2U-003 is mains powered and the GS2U-004 is DC powered from the GS2U-003. All inputs and outputs are electronically balanced.

GS2U-004 (Top) and GS2U-003 (Bottom)

Block Diagram of The GS2U-003 & GS2U-004
Panel Drawings of GS2U-003

ALSO AVAILABLE GS3U-058 & GS2U-008

The GS3U-058 & GS2U-008 is an adaptation of the GS2U-003 & 004 (see above).

The GS2U-008 is the same as the GS2U-004 with the addition of 2 music input making a total of nine inputs being fed to 4 outputs, with the GS3U-058 all of these crosspoints are available. A listen facility is also included to monitor all of the 9 inputs and 4 outputs.

Block Diagram of the GS3U-058 & GS2U-008
Panel Drawings of the GS3U-058