Manual-2
FRONT PANEL DESCRIPTION
POWER switch:
The key to life in any electronic device. This switch allows power to flow from the source to the very soul
of the PE 15, thereby empowering all its vital functions.
POWER indicator:
When this yellow LED is lit, the unit is ready to serve.
OVERLOAD indicator:
illuminates red whenever the signal level at the Input, Output, or any of the five equalizer stages
comes within 3-4 dB of clipping.
MASTER LEVEL control:
Full counterclockwise rotation of this control provides full Input attenuation; full clockwise
rotation yields 20 dB of gain through the unit. Unity gain is approximately 12:00, (Central Daylight Time).
Overall BYPASS switch:
Engaging this pushbutton provides a complete hard-wire bypass of the PE 15, including signal
ground. In the
out
position, the Input to the unit is processed through all of the active electronics. This is a passive control
requiring no power to operate.
Overall BYPASS indicator:
illuminates red when the unit is in the BYPASS mode created by
.
BANDWIDTH controls (Q):
Full counterclockwise rotation yields a bandwidth of
1
/
30
octave (Q=43) in the respective
filter, while full clockwise rotation gives a 1.5 octave (Q=0.9) bandwidth. (Pulling this control to the out position on Bands 1
and 5 switches the filters to their Shelf Mode.)
Filter LEVEL controls:
The center detent position guarantees flat response through the respective filter due to its grounded
center-tap. Full clockwise rotation de15 dB of boost, while full counterclockwise rotation yields -20 dB of cut.
FREQUENCY sweep controls: set
the center frequency of the filter band (or the Turnover Frequency for Shelf Mode).
Available sweep range is approximately four octaves.
Filter BYPASS switches:
Each of the five filter BYPASS switches disables the respective filter providing instant compari-
son between flat response and equalized response.
Filter BYPASS LED:
illuminates when the band is in BYPASS created by
.
