Item #: DBX IEQ31 G20 LIST

DBX iEQ31 Dual 31 Band Graphic Equalizer/Limiter

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Product Highlights

Product Description

The DBX iEQ31 Dual Graphic Equalizer/Limiter easily lives up to the dbx legacy of uncompromised sonic integrity. In addition to unsurpassed equalization specs, the DBX iEQ31 Graphic Equalizer 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 iEQ31 graphic equalizer also offers +12 dB input gain range; switchable +6 or +15 dB boost/cut range, 40mm faders, XLR, 1/4-inch 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 dbx' meticulous attention to detail and top-quality componentry is exceptional sound, performance, and reliability. 

DBX iEQ31 Dual Graphic Equalizer/Limiter Features:
  • 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
The DBX 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 iEQ31 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 iEQ31 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 DBX iEQ31 31 Band Graphic Equalizer offers the maximum sonic flexibility in a straight forward interface and rock solid construction.

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Helpful Info about the Manufacturer
Phone:  (801) 566-8800 Warranty:  2 Years

Product Specifications

DBX iEQ31 Dual Graphic Equalizer/Limiter Specifications

  • Connectors: 1/4 inch TRS, female XLR (pin 2 hot), and Euroblock
  • Type: Electronically balanced/unbalanced, RF filtered
  • Impedance: Balanced 40k ohm, unbalanced 20k ohm
  • Maximum Input Level: >+22dBu balanced or unbalanced
  • CMRR: >40dB, typically >55dB at 1kHz
  • Connectors: 1/4 inch TRS, male XLR (pin 2 hot), and Euroblock
  • Type: Balanaced/unbalanced, RF filtered
  • Impedance: Balanced >120 ohm, unbalanced >60 ohm
  • Maximum Output Level: >+20dBu balanced/unbalanced into 2k ohm or greater
System Performance
  • 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: 48khz
  • Latency: 2msec
  • Operating Voltage: 120VAC 60Hz, 220-240VAC 50/60Hz
  • Power consumption: 17W
  • Main Connection: IEC receptacle
  • Dimensions (H x W x D): 5.25 x 19 x 7.9 inches

Customer Reviews

Review: Butch Submitted: 3/29/2014

Product Rating5 out of 5 stars.



worth the momey

Review: RobG Submitted: 11/6/2011

Product Rating4 out of 5 stars.


Extremely Clean, Accurate and Transparent Control of EQ
Product Rating

DBX is known for well made products. I picked this particular product because it was DBX and it was digitial for a tighter control and lower noise floor.

1) The accuracy of the frequency control. Extremely tight and transparent. 2) Very low noise floor - unlike analog eqs. 3) The VU leds for tracking input/output to get a visual perspective of levels. 4) The eq defeat button to take the eq in and out of the signal path for relative reference to what the eq is doing to the mix.

The DBX iEQ31 was extrememly easy to install and setup. I used a 31 band frequency analyzer to dial in the frequency response of my recording monitor speakers. The monitors have fatigued and the response between the two is different. I found the iEQ31 extrememly accurate and "tight". It did not take much movement to the sliders to affect the particular frequency being adjusted. What really struck me is how "tight" the eq was - movement in one frequency did not have much affect on neighboring frequencies. Most often with an analog eq, moving one frequency slider would affect the neighboring frequencies and you would have to find a level balance between them to achieve a flat balanced sound. However, with the digitial iEQ31 - it was much easier to affect only the frequencies out of balance with little affect to the neightboring frequencies. Perfect for fine-tuning critical monitoring speakers.

Extremely transparent - perfect for fine-tuning monitor response. You can hear the difference in the response - without hearing any additional "color" from the iE31. Perfect!


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