Rane GE 14, GE 27 User Manual
Professional Audio Products Data Sheet
GE Series Constant-Q Equalizers
GE 14 & GE 27
GRAPHIC EQUALIZERS
General Description
The Rane GE Series Constant-Q Graphic Equalizers
consists of the GE 14, a 2-Channel, 14-band, 2/3-octave
design, and the GE 27, a single Channel, 27-band, 1/3-octave
version. Housed in two rack-space units, these equalizers
feature long throw, high resolution slide controls on each
band, ensuring good resolution over its extended boost/cut
range of +12dB to -15dB.
The active filter sections are of the constant bandwidth
(constant-Q) variety. The bandwidth of each individual filter
is guaranteed to be narrow enough to prevent unwarranted
interaction between filters, yet wide enough to produce
exactly the type of correction curve demanded by even the
most unusual acoustic surroundings. This differs dramatically
from conventional designs of the past encumbered with the
Features
GE 14: (2) 14-BAND, 2/3-OCTAVE CHANNELS
GE 27: (1) 27-BAND, 1/3-OCTAVE CHANNEL
CONSTANT-Q BANDWIDTH DESIGN
1/4" TRS CONNECTORS
OVERALL LEVEL CONTROLS
PASSIVE BYPASS SWITCHES
45mm FILTER SLIDE CONTROLS
+12, -15dB BOOST/CUT RANGE
unfortunate characteristic of changing bandwidth with
changing boost/cut amounts.
Front panel controls and indicators include an overall
LEVEL control for each Channel as well as Signal present
and Overload indicators. The rear of the unit provides ¼" TipRing-Sleeve connectors for Inputs and Outputs. The Inputs
are fully actively balanced: the tip is the positive input, the
ring negative and the sleeve is signal ground. Unbalanced
sources may be connected to the GE series through the use of
either mono ¼" connectors or by tying the ring to the sleeve
on TRS type plugs. The outputs are active unbalanced.
Please consult the references cited on the back for
additional details.
GROUNDED CENTER-DETENTS
OVERLOAD INDICATORS
SIGNAL PRESENT INDICATORS
INFRASONIC FILTERS
ULTRASONIC FILTERS
RFI FILTERS
UL LISTED
GE 14 & GE 27
Professional Audio Products Data Sheet
GRAPHIC EQUALIZERS
Features and Specifications
Parameter Specification Limit Units Conditions/Comments
Equalizer:
.......... Bands: GE 14 (14) 2/3-Octave ISO Spacing From 40Hz to 16kHz
...................... GE 27 (27) 1/3-Octave ISO Spacing From 40Hz to 16kHz
.......... Type Constant-Q
.......... Accuracy 3 % Center Frequency
.......... Travel 45 mm Positive Grounded Center Detent
.......... Range Boost: +12; Cut: -15 +2/-1 dB
Inputs: Type Active Balanced/Unbalanced
.......... Connectors ¼" TRS
.......... Impedance 20k 1% Ohms
.......... Maximum Level +22 1 dBu Level Control Set Less Than Unity
+19 1 dBu Level Control Set For Unity Gain
+14 1 dBu Level Control Max
Outputs: Type Active Unbalanced
.......... Connectors ¼" TRS
.......... Impedance 100 1% Ohms Signal & Common to Ground
.......... Maximum Level +20 1 dBu Level Control Max
+18 1 dBu Level Control Set For Unity Gain
Overall Gain Range Off to +6 -0/+4 dB Sliders Centered
RFI Filters Yes
On/Off Transient Muting Yes Relay Controlled
Passive Bypass Switch Yes
LED Thresholds: Overload +16 1 dBu Output or any Internal Level
.................... Signal Present -20 1 dBu Input Level
Infrasonic Filter 20Hz, 18dB/Oct, Butterworth 3% Hz
Ultrasonic Filter 50kHz, 12dB/Oct 3% Hz
Frequency Response 20-50kHz +0/-3 dB
THD+Noise 0.009 .002 % +4dBu, 20-20kHz
IM Distortion (SMPTE) 0.02 .01 % 60Hz/7kHz, 4:1, +4dBu
Signal-to-Noise Ratio GE 14 GE 27 re +4dBu, 20kHz Noise Bandwidth
89 94 2 dB Sliders Centered, Unity Gain
86 91 2 dB Sliders Centered, Max Gain
75 75 2 dB Sliders Max, Unity Gain
70 70 2 dB Sliders Max, Max Gain
Channel Separation (GE 14) 75 5 dB 20-20kHz
Maximum Power 30 W
Line Voltage: Domestic 95-130VAC, 50/60Hz
.................... Export 190-250VAC, 50Hz
Unit: Construction All Steel
.......... Size 3.5"H x 19"W x 8.5"D (2U) (8.9cm x 48.3cm x 21.6cm)
.......... Weight 9 lbs (4.1 kg)
Shipping: Size 7" x 22" x 13" (18cm x 56cm x 33cm)
.......... Weight 12 lbs (5.4 kg)
Note: 0dBu=0.775Vrms
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