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FRONT PANEL DESCRIPTION

1. RATIO CONTROL. 

This rotary control determines the slope of the compressor for

signals exceeding threshold. Full counter-clockwise rotation of the

 RATIO 

control

disables all Compressor activity.

2. DUAL FUNCTION METER.

 This six segment LED meter indicates either Gain

Reduction or Output Level as determined by the position of the Meter Mode
Switch. 

GAIN REDUCTION

 mode displays the amount of reduction (below

unity) applied to the audio signal by the VCA. 

OUTPUT

 mode displays the

balanced output level in dBu, i.e. where 0dBu = 0.775 Vrms.

3. METER MODE PUSHBUTTON.

 The 

out

, or disengaged, position selects 

GAIN

REDUCTION

 meter mode. The 

in

, depressed, or engaged, position selects

OUTPUT

 meter mode.

4. THRESHOLD LED.

 This yellow LED illuminates any time the input signal

exceeds the 

THRESHOLD

 setting.

5. THRESHOLD CONTROL.

 The position of this rotary knob determines above

what input level the Compressor/Limiter functions.

6. BYPASS LED.

 A red LED indicating the BYPASS switch is engaged.

7. BYPASS SWITCH.

 A passive switch used to bypass all active circuitry in this

channel. Press 

in

 to Bypass.  Useful for A-B comparisons and to restore signal path

should power fail.

8. SYSTEM RESPONSE SWITCH.

  Use this pushbutton to select the desired attack/

release response. 

Out

 chooses 

SLOW

in

 chooses 

FAST

.

9. SYSTEM MODE SWITCH.

 In the 

in

 (

SLAVE

) position, this switch causes both

Channels’ Compressors to act together, i.e., they are “slaved”. All controls for both
Channels remain active, so independent settings are still possible; however,
whenever a signal in either Channel exceeds its setting, then 

both

 Channels change

by the same amount. In the 

out

 (

DUAL

) position, both Channels operate indepen-

dently.

10. OUTPUT LEVEL CONTROLS.

 This concentric control increases or decreases

the output Level for each Channel. Up to 10dB of gain is available.  Unity gain is
about “7” for balanced outputs, and “8” for unbalanced outputs.

11. OVERLOAD LEDS.

 Illuminates any time either output signal gets to within about

4dB of clipping. Occasional flickering is okay, continuous is not.

12. POWER INDICATOR LED.

 Hey, if it’s lit, you’re fit; if not, call a doc. And

while we’re on the subject of power, let me take this opportunity to tell you just
what I think about runaway government ...

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