FRONT PANEL CONTROLS
This switch will select either a “Transformer-
Balanced” or “Active-Balanced” output for the XLR
and 1/4” TRS outputs.
A dual colored LED will illuminate indicating that the
EQF 810 is powered and active. When the output
switch is set to the “XFMR” position, the LED will
indicate green. This LED will change from green to
red when the switch is depressed to the “ACTIVE”
position.
This control adjusts the frequency of the HP filter from 20Hz (Full
CCW) to 250Hz (Full CW) with a slope of 12dB/octave
for the low
range selection or 100Hz to 1.2kHz when the 5X select switch is
enabled.
This switch is used to enable or disable the High
Pass filter circuit. In the “out” position, this switch
completely bypasses the HP filter circuitry. When
this switch is depressed, the HP filter is enabled.
A green LED indicates the operation of the filter.
This switch selects the frequency range of the high
pass filter. In the “out” position, the low range of
20Hz-250Hz is selected. When depressed, this
switch selects a range of 100Hz-1.2kHz. A yellow
LED illuminates indicating that the 5X frequency
multiplier has been enabled.
This control adjusts the frequency of the LP filter
from 150Hz (Full CCW) to 25kHz (Full CW) with
a slope of 12dB/octave.
This switch is used to enable or disable the Low Pass filter circuit. In
the “out” position, this switch completely bypasses the LP filter
circuitry. When this switch is depressed, the LP filter is enabled. A
green LED indicates the operation of the filter.
1. Output Select
VARIABLE FILTERS
2. High Pass Frequency
5. Low Pass Frequency
3. High Pass Filter Enable
6. Low Pass Filter Enable
4. High Pass X5 select
1
2
3
4
5
6
Chapter 3
Operation Section
11
