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Rane FPE 13 Data Sheet
FPE 13
Professional Audio Products Data Sheet
PARAMETRIC EQUALIZER
FPE 13 Parametric Equalizer
General Description
This unit is a three-band, modular version of
Rane’s famous five band parametrics. This Flex
version actually expands the features of the
larger units while maintaining or exceeding the
quality and performance of its predecessors.
Each of the three filters cover the entire
audio spectrum thanks to the three position
Frequency Multiplier switches adjacent to each
Frequency Sweep control. In addition, each
filter can be adjusted over an amplitude range of
-20 to +15dB with a grounded detent at 0dB.
The Bandwidth of each filter is continuously
variable between .03 and 2 octaves.
As is true with all Rane equalizers, each
parameter of every filter is completely independent. Moving any control will not effect the
setting of any other. This is of great benefit to
the user due to the cryptic nature of a parametric
equalizer. Without the visual feedback afforded
by the more common graphic equalizer, it is
especially important that the various parameters
of the filters do not move around randomly as
the controls are adjusted.
The rear panel of the FPE 13 features
balanced 3-pin and #6 terminal strip Input and
Output connectors. Additional ¼" TRS Input
and Output connectors also serve as expand or
patch points. These ¼" connectors allow adding
as many FPE 13s as necessary to achieve an
unlimited number of filters in one audio channel.
An insert PATCH jack (tip input, ring
output) allows the FPE 13 to be connected to a
standard tip-send, ring-return mixer insert jack
using a single standard ¼" TRS cable.
Power is supplied to the FPE 13 through its
6-pin modular connector. This power may be
from either a Model RS 1 single power supply
included with each FPE 13, or a Rane FRS 8,
RAP 10 or VC 18 Remote Power Supply.
Features
•
•
•
•
•
•
3 SEPARATE 10-20kHz FILTERS
+15/-20dB BOOST-CUT RANGES
OVERALL GAIN RANGE OFF TO +20dB
BYPASS SWITCH WITH LED
1/30 TO 2 OCT. BANDWIDTH RANGE
3-PIN IN AND OUT CONNECTORS
Parameter
Equalizer: Bands
..........Range
..........Bandwidth
..........Sweep
Overall Gain Range
Passive Bypass Switch
Low Filter
Signal-to-Noise Ratio
Maximum Current Demand
•
•
•
•
•
•
EXPAND INPUT AND OUTPUT
INSERT PATCH JACK
LOW FILTER 15Hz 18dB/OCT
OVERLOAD INDICATOR
FULLY BALANCED IN/OUT
EQ PATENT 4,891,841
Specification
3
Boost: +15; Cut: -20
.03 to 2.0 Octaves
4+ Octaves:
10Hz to 200Hz
100Hz to 2kHz
1kHz to 20kHz
Off to +20
Yes
15Hz, 18dB/Oct, Butterworth
re +20dBu/+4dBu
108/92
101/85
91/75
300
Limit
Units
1
5
5
dB
%
%
Conditions/Comments
Full Parametric
Minimum Phase Design
Continuously Variable
Frequency Switch: x0.1
Frequency Switch: x1.0
Frequency Switch: x10
-0/+4
dB
3%
Hz
2
2
2
dB
dB
dB
mA
LED Indicator
Internally Defeatable
20kHz Noise Bandwidth
Boost/Cuts Centered, Unity Gain
Boost/Cuts Centered, Max Gain
Boost/Cuts Max, Max Gain
RMS Current From Remote Supply
FPE 13
PARAMETRIC EQUALIZER
Rear Panel
Professional Audio Products Data Sheet
Block Diagram
Application Information
The FPE 13 Parametric Equalizer was
designed to be as flexible as possible given its
small size.
The FPE 13 includes a 15Hz 18dB/octave low
filter to band-limit destructive and power robbing
infrasonic frequencies. In the event this filter is
not required, it may be internally bypassed with a
jumper option on the PCB. The FPE 13 also
includes a passive front panel Bypass switch
requiring no power to operate. This can help you
when system troubleshooting or when comparing
the input signal with the equalized signal.
All three bands can sweep the same frequency
range which spans from 10Hz to 20kHz. Note
that the span of each of the Frequency controls is
one decade plus an octave for each of its three
settings. Since the audio spectrum is about three
decades wide, this feature allows each of the
three bands to occupy its own decade of the
audible spectrum.The overlapping design insures
that there will be no blind spots in the audio
range that can’t be reached. This is especially
important when you are sweeping the band to
null out certain frequencies.
The Bandwidth adjustment range is our
widest ever, ranging from .03 to 2 octaves wide.
One of the benefits of the 2 octave bandwidth is
that you can emulate a bass, treble and midrange
tone control. This allows subtle changes to the
spectral balance.
Of course, at or near .03 octaves of bandwidth
you can spot feedback sensitive frequencies and
attenuate them by up to 20dB. For notching
applications, it is useful to note that in the .03
octave setting the width of the notch at the
baseline is less than 1/6 octave. So you can place
a 20dB deep notch anywhere in the spectrum and
affect surrounding frequencies by less than 1/6
octave.
© Rane Corporation 10802 47th Ave. W., Mukilteo, WA 98275-5098 TEL(206) 355-6000 FAX(206) 347-7757
Printed in the U.S.A. on Recycled Paper
All features & specifications subject to change without notice 520-104 MAY94
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