Rane FPE 13 User Manual

Professional Audio Products Data Sheet

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.

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.

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.

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.

FPE 13

PARAMETRIC EQUALIZER

The rear panel of the FPE 13 features

An insert PATCH jack (tip input, ring

Power is supplied to the FPE 13 through its

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 Specification Limit Units Conditions/Comments

Equalizer: Bands 3 Full Parametric

..........Range Boost: +15; Cut: -20 1 dB Minimum Phase Design

..........Bandwidth .03 to 2.0 Octaves 5 % Continuously Variable

..........Sweep 4+ Octaves: 5 %

10Hz to 200Hz Frequency Switch: x0.1
100Hz to 2kHz Frequency Switch: x1.0

1kHz to 20kHz Frequency Switch: x10
Overall Gain Range Off to +20 -0/+4 dB
Passive Bypass Switch Yes LED Indicator
Low Filter 15Hz, 18dB/Oct, Butterworth 3% Hz Internally Defeatable
Signal-to-Noise Ratio re +20dBu/+4dBu 20kHz Noise Bandwidth

108/92 2 dB Boost/Cuts Centered, Unity Gain

101/85 2 dB Boost/Cuts Centered, Max Gain

91/75 2 dB Boost/Cuts Max, Max Gain
Maximum Current Demand 300 mA RMS Current From Remote Supply

• EXPAND INPUT AND OUTPUT

• INSERT PATCH JACK

• LOW FILTER 15Hz 18dB/OCT

• OVERLOAD INDICATOR

• FULLY BALANCED IN/OUT

• EQ PATENT 4,891,841

FPE 13

PARAMETRIC EQUALIZER

Rear Panel Block Diagram

Professional Audio Products Data Sheet

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[phone] FAX[phone]

Printed in the U.S.A. on Recycled Paper All features & specifications subject to change without notice 520-104 MAY94