Graphic Equalizer Owner's Manual v 2.3CE ©1997 ARX®
Graphic Equalizer Owner's Manual v 2.3CE ©1997 ARX®
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3
EQ60 Specifications
Input Impedance
Balanced 20 K ohms
Unbalanced 10 K ohms
Input Headroom
+ 23 dB
CMRR
>52 dB, 20 Hz to 20KHz
Output Impedance
Balanced 300 ohms
Unbalanced 150 ohms
Output Level (Max)
+ 23 dB
Filter
One third octave, 30 x ISO standard
frequencies per channel
Filter Type
R/C active, MFB bandpass, Constant Q
Centre Frequency accuracy
±2% of nominal
Maximum Cut/Boost
±15 or 6 dB, switchable
Frequency Response
10 Hz to 20 KHz, ± .25 dB
Signal to Noise ratio
-93 dB Unweighted
-98 dB ‘A’ weighted
(All controls centred)
High Pass Filter
-3dB @ 30 Hz, switchable
Distortion
.0035% THD @ 0dB,1KHz
Dynamic Range
116 dB
Power Requirements
100/120 V AC 50 - 60 Hz
220/240 V AC 50 - 60 Hz
20 Watts (20 VA)
Weight
10 lbs/4.5 Kg
Dimensions
19"W x 5¼"H x 9"D
482 x 132 x 230mm
Input Connector type
TRS Jack and XLR
Output Connector type
TRS Jack and XLR
EQ30 specifications electronically identical except that it’s a single channel unit
Introduction
Thank you for choosing this ARX Graphic Equalizer. We hope you enjoy
using it as much as we enjoyed creating it. As with all ARX equipment, it
has undergone extensive factory calibration and ‘burn in’ before shipping.
To ensure continued trouble free use, please familiarise yourself with the
contents of this manual before using.
About ARX Graphic Equalizers
ARX graphic equalizers are designed to give flawless performance, yet
take up the minimal rack space commensurate with total operator control.
The EQ30 and EQ60 are uncompromisingly professional third octave
equalizers that are equally at home with applications ranging from
Compact Disc mastering and Broadcasting to high level Studio room
tuning and Concert Sound. The EQ15 is targeted at installations where the
program material is predominantly pre-recorded and pre-processed, such
as Disco and Karaoke, or where budget constraints preclude the use of a
dual 30 band equalizer.
Rigorous analysis and testing of equalizer requirements, and the
limitations of existing designs, has led ARX design engineers to develop
and refine the innovative ‘Constant Q’ circuitry featured in these
equalizers. Constant Q is a true WYSIWYG (What You See Is What You Get)
design concept that allows far more accuracy in EQ control.
Each channel has a Gain recovery control with up to 6 dB of gain; a Clip
LED to indicate circuit overload; 30 or 15 maximum throw, well damped,
centre grounding sliders, switchable to /-15 dB, or +/-6 dB for
accurate fine tuning. As well there is a switchable 30 Hz High Pass filter,
and an IN/OUT hardwire bypass switch which removes the EQ
completely from the circuitry.
Other features include true differential balanced Inputs and servo balanced
Outputs on both XLR and TRS connectors, plus an audio ground lift
switch.
With their compact High Density design, cool good looks, and precision
electronics, ARX Graphic Equalizers provide attractive solutions for all
equalization applications.