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DBX IEQ31 Digital EQ Stereo 31 Band Digital Graphic EQ

Product ID: DBXIEQ31

DBX IEQ31 Digital EQ Stereo 31 Band Digital Graphic EQ

DBX IEQ31 Digital Graphic Equalizer Stereo 31 Band Digital Graphic EQ


Warranty Information



New DBX iEQ 31 stereo digital graphic EQ

DBX iEQ 31...Digital EQ & functionality with an analog interface

With an EQ heritage that has produced countless industry-standard patents and dates back more than 30 years, the dbx iEQ-31 easily lives up to the dbx® legacy of uncompromised sonic integrity. In addition to unsurpassed equalization specs, the iEQ-31 also offers the built-in necessities which include AFS feedback Suppression, Type V noise reduction and PeakStopPlus® limiting. Besides including two 31-band channels of 1/3-octave equalization, the iEQ-31 also offers 12 dB input gain range; switchable 6 or 15 dB boost/cut range, 40mm faders, XLR, 1/4'' and Euroblock inputs and outputs, nonconductive nylon sliders; and an intuitive user interface with comprehensive output and gain reduction metering. As always, the inevitable result of our meticulous attention to detail and top-quality componentry is exceptional sound, performance, and reliability.

The iEQ series represents a major step forward in the performance of graphic equalizers. The iEQ series is now able to offer state-of-the-art digital EQ performance and specs with an analog look and feel. From its amazing 10Hz to 22kHz frequency response, to its 113dB dynamic range and Advanced Feedback Suppression (AFS), dbx proprietary Type V noise reduction and PeakStopPlus® limiting, the iEQ-31 offers out of this world specifications with a down-to-earth price point. Sure to find a home in the studio, on tour and with installed sound venues, the iEQ-31 is destined to take its rightful place in the lineage of great dbx® signal processors that are the professional's choice in signal processing. With such pristine design and quality, the iEQ-31 offers the maximum sonic flexibility in a straight forward interface and rock-solid construction.



  • Advanced Feedback Suppression (AFS)
  • Type V Noise Reduction
  • PeakStopPlus Limiting
  • 1/3-octave Constant Q frequency bands
  • Switchable boost/cut ranges of ±6 or ±15dB
  • 18 dB per octave 40Hz low-cut filter
  • ±12dB input gain range
  • XLR, TRS and Euroblock Inputs and Outputs
  • Internal Toroidal Transformer
  • Dyanmic range of greater than 113dB
  • User Power Up Features
  • Relay Bypass for Power Failure System Protection








1/4" TRS, female XLR (pin 2 hot), and Euroblock


Electronically balanced/unbalanced, RF filtered


Balanced 40k ohm, unbalanced 20k ohm

Max Input Level:

> 22dBu balanced or unbalanced


>40dB, typically >55dB at 1kHz



1/4" TRS, male XLR (pin 2 hot), and Euroblock


Balanaced/unbalanced, RF filtered


Balanced >120 ohm, unbalanced >60 ohm

Max Output Level:

 > 20dBu balanced/unbalanced into 2k ohm or greater


Frequency Response:

20Hz to 20kHz, 0.5/-0.25dB

Dynamic Range:

>113dB, "A" weighted

THD Noise:

<0.003%, typical at 4dBu, 1kHz

Interchannel Crosstalk:

<-80dB, 20Hz to 20kHz

Noise Reduction:

Up to 10dB of dynamic broadband noise reduction

Digital Resolution:

24 bits

Sample Frequency:





Operating Voltage:

120VAC 60Hz

Power consumption:


Main Connection:

IEC receptacle


5.25" H x 19" W x 7.9" D

Note: Specifications subject to change without notice