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FRONT & REAR CONNECTIONS
5
(1)
(2)
(3)
(4)
(9)
FRONT PANEL
REAR PANEL
(6) (7) (8)
CONTROLS & INDICATORS
FRONT PANEL
The PRA-8 has eight independent pre-amplifier channels. The
unit provides variable rotary gain controls, phantom power and
peak indicator lights per channel.
(2) GAIN CONTROLS
Each channel features a rotary gain control for variable
adjustment of the desired pre-amplifier level.
(3) PHANTOM POWER SWITCHES
If needed to power condenser microphones, each channel
features a phantom power switch for supplying +48VDC across
pins 2 and 3 of the XLR input connector. If you don’t need
phantom power, be sure to turn this switch to the “OFF” position.
(Note, It is safe to connect balanced dynamic mics even if this
switch is on, but connecting unbalanced devices or devices
whose transformers are center grounded will cause hum or
malfunctions. Shorting the +48VDC can also damage your
PRA-8. Also, mute any connected Monitor/PA speakers when
turning the phantom power on or off.)
(4) POWER LED INDICATOR
This LED indicator illuminates when the unit is powered on by the
rear panel POWER SWICH (8).
(9) CHANNEL PEAK (CLIP) LED INDICATORS
This LED indicator illuminates when that channel’s pre-amplifier is
overloaded. To avoid distortion, turn down the GAIN (2) control
for the selected channel until the peak clip light is no longer
illuminated.
REAR PANEL
(8) POWER SWITCH
To turn the unit ON or OFF, press the upper or lower portion of
this button as indicated. The front panel POWER LED
INDICATOR (4) will illuminate when the power is “ON”. Before
turning on this unit, verify connection to the proper voltage AC
source, check all connections and turn down the level controls of
equipment connected to the outputs.
(6) AC VOLTAGE SELECTOR SWITCH
Before plugging in the power cord, check to see that the unit is
set for the proper voltage for your area: ~115v (60Hz) or ~230V
(50Hz).
(Note: use at the improper voltage can damage your unit and
void the warranty.)
(5)
FRONT PANEL
(1) AUDIO INPUTS
Eight balanced XLR audio input jacks
REAR PANEL
(5) AUDIO OUTPUTS
Eight balanced output 1/4” TRS jacks
(6) POWER CONNECTOR WITH FUSE HOLDER
This standard IEC power cord receptacle is used to connect the
AC power to your unit. It features a built-in fuse holder for a
5X20mm, 0.5A/250V slow-blow fuse. If the fuse continuously
blows, shut off the unit and have it serviced by qualified service
personnel.