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Operator Manual – GQX-3102 Equalizer
Copyright© 2012 – Ashly Audio Inc.
Physical Description
The GQX-3102 is 3RU, and weighs 15 pounds.
GQX-3102 Front Panel
1. Power LED –
Displays power on or off.
2.
Equalization -
The individual equalization
faders adjust the gain or loss at each filter
frequency. There are 31 of these faders per
channel on the GQX-3102. By adjusting a
combination of faders, an overall frequency
response can be developed and the physical
position of the faders will give an approximate
visual indication of this response.
3. Gain
-
The gain control adjusts the overall gain
of the equalizer when the EQ switch is “in”. It is
generally used to compensate for level
changes due to the equalization process, but
can also adjust overall system level and gain
structure. Overall gain with this control is from
+6dB to -
∞
.
4.
Level Meters -
On the GQX-3102, a 10-
segment, two color LED level meter indicates
the output level of the equalizer. A Clip
indicator LED illuminates when any point in the
equalizer signal path reaches a level within 3dB
of clipping.
5.
Range Switch -
This switch selects the
operating range of the individual equalization
faders between 15dB and 6dB. The 15dB
settings should be used when this much
equalization is needed. The 6dB setting allows
finer resolution on the fader settings.
6.
EQ Bypass Switch -
This switches the Graphic
Equalization and gain adjustments, allowing the
effect of any equalization to be compared to a
“flat” response. This switch does not defeat the
High-pass filter.
7. High-Pass Filter -
The high-pass filter can be
used to supplement the frequency response
achieved by the bandpass filters. Its function is
to “roll off” the response below a given
frequency eliminating subsonic interference like
wind noise or floor rumble. This frequency is
adjustable between 14Hz and 280Hz.
GQX-3102 Rear Panel
1.
Inputs
- For unbalanced inputs, the signal
should be on the + connection and the -
connection tied to ground. A mono 1/4” plug
used as an unbalanced connection will
automatically be grounded. When using a
stereo plug, XLR connector, or euroblock for an
unbalanced signal, the (-) input connection
MUST be tied to ground.
2.
Ashly Servo-Balanced Output -
This output
circuit is an active output which maintains a
constant output level between the (+) and (-)
output terminals, regardless of either terminal
being connected to ground. This servo-
balanced output provides an unchanged signal
without regard to ground.
Introduction - 4
GQX Equalizers – 5
Connectors & Cables – 5
Physical Description - 6
Front Panel
Rear Panel
Installation – 7
Typical Applications - 8
Troubleshooting - 9
Dimensions - 9
Specifications - 10
Warranty - 11