Advertisement
FRONT PANEL CONTROLS
(4) Audio Input Impedance Switch (S5)
This 3 position toggle switch is used to change the input impedance
of the Mic and Aux Inputs (19,20 & 21). Input Impedances of 200 ohms,
600 ohms and 50K ohms ( HI-Z)may be selected.
(5) Mic In Gain (R12)
This potentiometer, when turned clockwise, can increase the Audio Input
signal levels up to about +40dBv. The mic gain should be changed while
speaking into the microphone, until 3 or 4 green Bar Graph (7) LED's
are illuminated. Audio levels should be maintained in the green and
yellow ranges of the LED Bar Graph(6) .
(6) LED Bar Graph
The 10 segment LED Bar Graph indicates peak to peak EQplus internal
audio levels. The position of the Equalizer (7) and Compressor /
Downward Expander (10) switches control what internal function is being
indicated. The tables below defines what the LED Bar Graph is indicating.
EQplus BAR GRAPH MONITORING
The pictorial below shows the EQplus Audio Chain
Audio
Audio IN
Amp
Band EQ
Compressor Equalizer
off
off
off
on
on
off
on
on
EQplus AUDIO CHAIN
ON
Dual
Comp./
Dwrd Expd.
OFF
Bar graph monitoring
Output of Audio Amp
Output of Equlaizer
Output of Compressor
Output of Compressor
ON
EFFECTS
PROC.
OFF
BAR
GRAPH
dB reading
-6-
ON
AUDIO
Audio Out
AMP
OFF
Peak to Peak
voltage
0
1 Volt
-6
500 mv
-12
250 mv
-24
125 mv
Advertisement
