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5 – LF In switch: OUT is bypass; IN inserts the 20 dB low-cut shelving
filter.
6 – LF Filter Frequency ontrol: This continuously variable control
adjusts the -3dB break-frequency of the filter from 18 Hz to 360 Hz;
maximum LF reduction is -20dB.
7 – P48 switch: OUT is off; IN applies full-spec P48 Phantom Power to
the input. The red LED above the switch will indicate when P48 Phantom
Power is engaged.
8 – Mic/Line switch: OUT is mic input mode; IN bypasses the mic
preamp stage to accomodate line-level signals. The green LED above the
switch will indicate when the Line Input Mode is engaged.
9 – Polarity Invert switch: OUT is normal; IN is inverted.
10 – Input Gain rotary switch: This twelve-position switch selects from
about +7 dB to +56 dB of preamplifier gain, as measured between the
input and the unbalanced output.
11 – Output Gain control: This continuously variable control provides
up to +19 dB additional output gain in Mic Input Mode, following the
CurveShaper circuitry. It acts as a fader and allows maximum attenua-
tion of the output signal in the full counter clockwise position. Additonal
+6 dB are applied by the balanced line driver in the output stage of the
module.
Initial Setup
The RPQ500 is a module designed for API 500 series consoles or racks.
Operation of the module in racks not compatible with the API VPR alli-
ance specification is not recommended and will void the warranty of the
unit.
Carefully insert the module in an open slot of your 500 series console
or rack and secure it with the two flathead Phillips screws supplied with
your rack.
Do not place your rack on or in close proximity to any object that emits
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