DATA SHEET
General Description
The Rane Model PE 15 Parametric Equalizer is a single
channel 5-band device of incredible versatility. It incorporates
all the required features of a parametric equalizer and fullfunction notch filter set. Each of the five filters in the PE 15
cover a center Frequency range of four octaves, a Bandwidth
of .03 to 1.5 octaves, and a boost/cut range of +15 dB to
-20 dB. Bands one and five switch to allow peaking or
shelving characteristics. Special attention to the design of the
state-variable filters make all of these adjustments possible.
All parameters are completely independent. To the user, this
means any control may be operated in any order without
affecting the others. This flexibility makes the PE 15 ideal for
all audio contouring applications. A range that begins with the
sharpest of notch filters and continues through broad-band
program contouring.
PE 15
PARAMETRIC EQUALIZER
Each Filter in the PE 15 may be individually Bypassed via
a front panel switch, allowing the operator to audibly audition
the effect of each Filter. An overall Bypass provides a “hardwire” from the Input connector to the Output connector,
completely defeating all effects of the unit. An overall Master
Control Level is provided which covers a range of completely
off to +20 dB. Front panel includes individual Bypass and
Overload indicators for each band.
The rear panel provides both XLR as well as ¼" Inputs
and Outputs. All connectors are fully active balanced.
As a notch filter the PE 15 is unsurpassed. With bandwidths as narrow as 1/30th octave and deep 20 dB cut
capability the PE 15 can remove any undesired slice of audio
resonance without audibly affecting sonic quality.
Features
• Five Parametric Bands
• Four Octave Frequency Sweep Range per Band
• .03 to 1.5 Octave Bandwidth Range
• -20 to +15 dB Filter Level Range with 0 dB Detent Controls
• Bands 1 & 5 Peaking or Shelving
• Individual and Overall Bypass Switches with Indicators
• Overload Indicator
• Master Level Control
• +20 dB Gain Available
• Balanced XLR and ¼" TRS Connectors
• UL/CSA/CE and 100/120/230 VAC Remote Power Supplies
Data Sheet-1
PE 15
PARAMETRIC EQUALIZER
Parameter Specification Limit Units Conditions/Comments
Equalizer: Bands 5
..........Type Full Parametric Bands 1 & 5 switchable to shelving
..........Range Boost: +15; Cut: -20 1 dB Minimum phase design
..........Bandwidth .03 to 1.5 Octaves 5 % Continuous sweep
..........Sweep 4 Octaves 5 %
20 Hz to 300 Hz Band 1
60 Hz to 1 kHz Band 2
150 Hz to 2.5 kHz Band 3
450 Hz to 8 kHz Band 4
1 kHz to 20 kHz Band 5
Inputs: Type Active Balanced/Unbalanced
..........Connectors XLR & ¼" TRS
..........Impedance 20k 1% ohms
..........Maximum Level +20 1 dBu
Outputs: Type Active Balanced
..........Connectors XLR & ¼" TRS
..........Impedance 200 1% ohms 100 ohms each leg to ground
..........Maximum Level +27 > 2k ohms; +24 > 600 ohms 1 dBu
Overall Gain Range Off to +20 -0/+4 dB
RFI Filters Yes
Passive Bypass Switch Yes
Overload LED Threshold +18 1 dBu Output or any internal level
Infrasonic Filter 15 Hz, 18 dB/Oct., Butterworth 3% Hz
Ultrasonic Filter 33 kHz, 12 dB/Octave 3% Hz
Frequency Response 15-33 kHz +0/-3 dB
THD+Noise 0.02 .01 % +4 dBu, 20-20 kHz
IM Distortion (SMPTE) 0.009 .001 % 60 Hz/7 kHz, 4:1, +4 dBu
Signal-to-Noise Ratio re +4 dBu, 20 kHz noise bandwidth
Unit: Agency Listing
..........120 VAC model Class 2 Equipment National Electrical Code
..........230 VAC model VDE, SELV Safety Extra Low Voltage
Power Supply: Agency Listing Class 2 Equipment
..........120 VAC model UL File no. E88261
..........230 VAC model CE-EMC Meets EMC directive 89/336/EEC
..........100 VAC model Built to JIS Japan only
Power Supply Requirement 18 VAC w/ center tap Rane model RS 1
Maximum Current 250 mA RMS Current from Remote Supply
Unit: Construction All Steel
..........Size 1.75"H x 19"W x 5.3"D (1U) (4.4 cm x 48.3 cm x 13.5 cm)
..........Weight 5 lb (2.3 kg)
Shipping: Size 4.25" x 20.3" x 13.75" (11 cm x 52 cm x 35 cm)
..........Weight 9 lb (4.1 kg)
Note: 0 dBu=0.775 Vrms
_
92 2 dB Boost/Cuts centered, unity gain
89 2 dB Boost/Cuts centered, max gain
73 2 dB Boost/Cuts maximum, max gain
UL & CSA Exempt Class 2 Equipment
CE-EMC EMC directive 89/336/EEC
CE-Safety Exempt per Art. 1, LVD 73/23/EEC
CSA File no. LR58948
CE-Safety LV directive 73/23/EEC
Data Sheet-2
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Block Diagram
PE 15
PARAMETRIC EQUALIZER
Application Information
The many and varied applications of parametric equalizers
lies beyond these available short paragraphs. Instead, an
overview of the unique and useful features of the PE 15 will
be covered.
Five full parametric bands with two shelving options
makes for an incredibly flexible unit. In addition, the PE 15
contains a steep 18 dB/octave low-cut filter located at 15 Hz,
and a 12 dB/octave high-cut filter located at 33 kHz. Consequently, bandlimiting destructive infrasonic and ultrasonic
frequencies is accomplished without using any of the five
parametric bands.
The accompanying graphs show the extreme range and
versatility of the PE 15.
The Frequency Sweep Range graph shows the typical
four octave reach (in this case, Band 3, from 150 Hz to
2.5 kHz) of the PE 15. Four octave range allows multiple
band correction to the same frequencies when required.
Always two bands will overlap; most frequencies can be
reached by three bands; and 1 kHz is covered by four bands.
The Bandwidth Adjustment Range graph shows the
curves achievable using the .03 to 1.5 octave wide Bandwidth
adjustment. Note that .03 octaves is 1/30th of an octave. Quite
narrow, we say. Combined with 20 dB cut capability, you can
slice out very small pieces of the audio spectrum when
required.
The Shelving Performance graph shows curves obtainable using the Shelf option for Bands 1 & 5. Changing to
Shelf operation is simply a matter of pulling the Bandwidth
control knob. It comes forward with a positive click, indicating Shelf mode is active. Once out, the Bandwidth control is
inoperative since this function is not needed. The Shelf
characteristic may be swept using the Frequency control,
however, the silkscreened legends will not relate well to the
actual corner frequency—a necessary compromise for this
mode.
Frequency Sweep Range
Bandwidth Adjustment Range
Shelving Performance
Data Sheet-3
PE 15
PARAMETRIC EQUALIZER
Rear Panel
Architectural Specifications
The parametric equalizer shall be a one (1) channel, five
(5) band unit with bands 1 and 5 switchable to shelving mode,
and be designed for rack-mounting requiring only one (1)
rack space.
Separate bypass switches with LED indicators shall be
provided for each band. Each band shall have separate
controls to sweep frequency over four (4) octaves, adjust
bandwidth from .03 to 1.5 octaves and set amplitude control
to a maximum of +15 dB boost and -20 dB cut. An overall
level control shall be included with a range from off to
+20 dB of gain.
The inputs shall be active balanced/unbalanced designs
terminated with XLR and ¼" TRS (tip-ring-sleeve)
connectors. The outputs shall be active balanced designs
terminated with XLR and ¼" TRS connectors.
RFI filters shall be provided. The unit shall provide a
passive Bypass feature requiring no power to operate.
Infrasonic and ultrasonic filters shall be built-in. An LED
shall be provided to indicate overload condition.
The unit shall be exempt from agency safety requirements
and powered from a UL listed, CSA certified remote power
supply (120 VAC) or CE approved (230 VAC). This external
supply shall be provided with each unit. The unit shall be
entirely constructed from cold-rolled steel, and mount into a
standard 1U EIA rack.
The unit shall be a Rane Corporation Model PE 15
Parametric Equalizer.
Available Accessories
• SC 1.7 Security Cover
©Rane Corporation 10802 47th Ave. W., Mukilteo WA 98275-5098 TEL (425)355-6000 FAX (425)347-7757 WEB http://www.rane.com
Data Sheet-4
All features & specifications subject to change without notice. DOC 103049 PN 08184 9-98
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