EQ Features


31-band stereo graphic equalizer for live and studio applications
Sound improvement in post-production and all recording situations
Sweep-able high-pass and low-pass filters remove unwanted signal portions, i.e.
impact noise, tape hiss, etc.
Servo-balanced inputs and outputs with gold-plated XLR and 1/4" TRS connectors
Relay-controlled hard bypass switch with auto bypass function (safety relay)
Extremely low-noise operational amplifiers for outstanding audio quality
Illuminated high-precision Alps faders
12-segment LED display for input or output level
High-quality components and rugged construction for long life
Manufactured under ISO9000 certified management system

Technical Description

Audio Input
Connectors: XLR and 1/4" jack
Type: RF filtered, servo-balanced input
Impedance: 50 kOhm balanced, 25 kOhm unbalanced
Max. input level: +21 dBu balanced and unbalanced
CMRR typ.: 40 dB, > 53 dB @ 1 kHz

Audio Output
Connectors: XLR and 1/4" jack
Type: electronically servo-balanced output stage
Impedance: 60 Ohms balanced, 30 Ohms unbalanced
Max. output level: +21 dBu balanced and unbalanced

System Specifications
Frequency response: 10 Hz to 35 kHz, +/- 3 dB
Noise: > 92.3 dBu, unweighted, 22 Hz to 22 kHz
THD: 0.004 % typ. @ +4 dBu, 1 kHz, Gain 1
Crosstalk: < -85 dB, 22 Hz to 22 kHz

Roll-Off Filter Section
Type: 12 dB/oct., butterworth
Input variable: (-15 dB to +15 dB)
Low cut variable: (10 Hz to 400 Hz)
High cut variable: (2.5 kHz to 30 kHz)

Graphic Equalizer
Type: analog 1/3-octave equalizer
Frequency range: 20 Hz to 20 kHz in 31 1/3-octave bands (ISO frequencies)
Bandwidth: 1/3 octave
Control range: +/- 6 dB or +/- 12 dB (switchable)

Function Switches
Audio in/out: switch to bypass the equalizer functions
I/O meter in/out: switches the meter display from input to output
Range: shift of the maximum cut/boost range for all 31 bands

Indicators
Input/output level: 12-segment LED display:
-30/-24/-18/-12/-6/-3/0/+3/+6/+9/+12/+18 dB
Function switch: LED indicator for every switch