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CONTROLS & INDICATORS
INPUT CONTROL
The Input Control sets the amount of input gain of the DPS . Turn the
control clockwise to increase gain and counterclockwise to decrease
gain. You may control two ranges of gain with this control, +20 to
+68dB and +0 to +48dB. Selection of the gain range is made with the
+20dB gain switch.
NOTE: This control, along with the +20 dB Switch, is responsible for
any saturation of the tube. To change the tube character, utilize these
2 controls.
+20DB GAIN SWITCH
Use the +20dB Gain Switch to set the gain range of the input control.
When the switch is out, the unit operates in Normal mode. Depressing
the switch adds 20dB of gain. For microphone applications, where
more gain is needed, push the switch in. For hot line level inputs, set
the switch in the out position.
PHANTOM POWER +48V SWITCH
The DPS
power. Phantom power is supplied to pins 2 and 3 of the XLR Input
jack when this switch is depressed. The DPS
and removes the +48volts, to prevent damage to microphones.
Be sure to turn down or mute the output of the DPS
or disengaging Phantom power. Additionally, when disengaging, allow
30 to 45 seconds for the power to completely discharge. Most
microphones will make a sound like air leaking from a tire when
Phantom power is disconnected, but some can make some very nasty
low rumbles and whines as well.
can power any microphone needing +48 volts DC Phantom
- 5 -
circuitry slowly applies
when engaging
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