iEQ31 Dual 31-Band Graphic EQ/Limiter with Type V NR and AFS


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    dbx by HARMAN
    dbx by HARMAN
    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

    Input Connectors 1/4" TRS, female XLR (pin 2 hot), and Euroblock
    Input Type Electronically balanced/unbalanced, RF filtered
    Insert Impedance Balanced 40k ohm, unbalanced 20k ohm
    Max Input >+22dBu balanced or unbalanced
    CMRR >40dB, typically >55dB at 1kHz
    Output Connectors 1/4" TRS, male XLR (pin 2 hot), and Euroblock
    Output Type Active-balanaced/unbalanced, RF filtered
    Output Impedance Balanced >120 ohm, unbalanced >60 ohm
    Max Output >+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 Rate 48kHz
    Latency 2msec
    Operating Voltage 120VAC 60Hz, 220/240VAC 50/60Hz
    Power Consumption 17 Watts
    Power Connector IEC receptacle
    Dimensions 3.5" H x 19" W x 7.9" D
    More Information
    Manufacturerdbx by HARMAN
    Manufacturer Model NumberIEq31-M
    Manufacturer Part NumberDBXIEQ31-M
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