dbx 160X - Page 7

OPERATING CONTROLS
dbx Professional Products
DISPLAY Switch and Indicator Depressing this button causes the up¬
per LED array to display the INPUT level to the 160XT. With the button
out, the OUTPUT level is displayed. A pair of LEDs immediately above
the DISPLAY switch indicates the selected display status.
LEVEL and GAIN REDUCTION Displays The upper row of 19 LEDs
displays either the INPUT or OUTPUT level, as selected with the DIS¬
PLAY switch. This display is factory set so that OdB is equivalent to
+ 4 d B u input or output level (1.23Vrms), but may be reset with the rear
panel METER CALIBRATION trimmer. (See following pages.)
The lower row of 12 LEDs displays up to 40dB of GAIN REDUCTION
caused by the 160XT. (Fixed gain changes due to the OUTPUT GAIN
control are not displayed by the GAIN REDUCTION LEDs but are re¬
flected in the OUTPUT level display.)
Rear Panel
r3E?F
INP U T-BALANCE D - OUTPUT
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UNBALANCED OETECTOR
LIFT
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iUBBATIO*
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tip* trs
RING ■ DC CONTROL
SLEEVE GND_VOLTAGES
Figure 2: Rear Panel
SIGNAL INPUT Jacks The Tip/Ring/Sieeve phone jack and XLR-type
connector are wired in parallel; either Signal Input will accept an audio
signal for processing by the 160XT. The phone jack accepts a stand¬
ard TRS V 4 “ phone plug for a balanced input source, or a 2-circuit
(Tip/Sleeve) V 4 ” phone plug for an unbalanced source. The XLR-type
plug connector is wired pin 3 HOT (+), pin 2 COLD (-) and pin 1
GROUND.
DETECTOR INPUT This Tip/Ring/Sleeve phone jack accepts a stand¬
ard TRS Va“ phone plug, and is of the “normalling” type. That is, when
a phone plug is inserted, the detector input is no longer connected in
parallel with the audio input.
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