dbx 160X - Page 8

160XT
OPERATING CONTROLS
SIGNAL OUTPUT - XLR-type connector The 160XT has an active-
balanced amplifier capable of driving a 600 ohm (or greater) load to
+24dBu. Pin 3 is the HOT (+) lead, pin 2 is the COLD (-) lead and pin
1 is circuit ground. Do not short either pin 2 or pin 3 to ground. This will
not damage the unit, but may increase distortion.
SIGNAL OUTPUT - Phone Jack The 160XT has a separate single-
ended (unbalanced) output amplifier also capable of driving a 600 ohm
(or greater) load to +24dBu. In normal operation the Tip/Ring/Sleeve
phone jack is internally wired with the TIP HOT (+), and the RING and
SLEEVE connected to circuit ground. In BYPASS mode, however, the
RING is connected to the COLD (-) leads of the input jacks, to allow
for 1:1 connections.
GROUND (GND) Lift Switch This switch allows for troubleshooting
hum (line interference) caused by ground loops. In the “GND” position,
pin 1 of the input XLR-type connector is connected to the 160XT’s cir¬
cuit ground. In the “LIFT” position it is disconnected. This is not a chas-
sis-isolate switch. The circuit ground is floating with the respect to the
chassis.
METER CALIBRATION Control This screw-driver-adjustable trimmer
may be used to precisely calibrate the front panel’s upper LED display
so a OdB INPUT or OUTPUT indication is equivalent to any signal from
—15dBu (138mVrms) to +10dBu (2.45Vrms).
STEREO STRAPPING Jack When a TRS (Tip/Ring/Sleeve) V 4 “ phone
plug patch cable is inserted between two 160XTs, stereo strapping can
be achieved by depressing the SLAVE switch on one unit only . This
will provide accurate processing for a stereo programming.
AC Cord: Plug into mains power. Note that the 160XT does not have a
power switch. It is recommended that the 160XT be “On” at all times.
Power consumption is low. If you do not plan to use the 160XT for an
extended period of time, unplug it.
WARNING: Be sure to verify both your actual line voltage and the volt¬
age for which your Model 160XT was wired, as indicated on the rear
panel of your unit. Connection to an inappropriate power source may
result in extensive damage which is not covered by the warranty.
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