API Audio 1608 Recording Console - Manual (Page 38)

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7.1 Stereo Headphone Amplifier
The 840B Stereo Headphone Amplifier is designed for use by the engineer or others in the
Control Room. It has the following features:
 On/off switch
 1/4” stereo headphone jack (located under the armrest)
 Feeds the current Control Room Monitor source from Monitor Control section
o
Volume follows the Monitor Control level
o
Mono summing is available
o
CR DIM is available
o
Not affected by the MON CUT or Monitor System Selectors
The 840B Stereo Headphone Amplifier control functions as follows:
7.2 Talkback
The 840B Talkback section provides a complete set of Talkback routing options and controls. It
has the following features:
 Talkback to all
 Talkback to auxes only
 Talkback microphone level
 Independent Slate function with level control
 Talkback Microphone in Meter Bridge
 Talkback remote control port
The 840B Talkback controls function as follows:
T/B TO AUX (Talkback to Auxiliaries): Routes Talkback to the enabled Auxiliary Buses
 The E1608 Echo Send T/B button must be engaged to enable Talkback to feed the
corresponding Auxiliary Bus
 The Echo Send must be turned ON with the level up to enable Talkback to feed the
corresponding Auxiliary Bus
 Momentary switch
 Independent level control
 Automatically engages the CR DIM function when pressed
 Illuminates in yellow when engaged
ON: On/off switch for the Stereo Headphone Amplifier
 Illuminates when engaged
SLATE: Routes Talkback to the Program and Summing Buses
 The Left and Right Program Bus Output Masters must be turned
ON with the level up to enable Talkback to feed the Program
Buses
 The eight Summing Bus masters (SUB 1-8) must be turned ON
with the level up to enable Talkback to feed the Summing
Buses
 Independent Level Control
 Momentary Switch
 Automatically engages the CR DIM function when pressed
 Illuminates in red when engaged
Note: The SLATE function does not include a tone or oscillator feed.
SLATE LEVEL: Volume control for the Talkback to the Program and
Summing Buses
 Located adjacent to the SLATE button