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dbx 231s Dual Channel 31-Band Graphic Equalizer
When the pros need an EQ, they turn to dbx. With a proven track record that spans four decades, dbx EQs are the industry standard for touring, studios, and audio installations. With the dbx heritage of revered pro EQs, the 231s meets the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls.
 
The dbx 231s includes two 31-band channels of 1/3-octave equalization, ±12 dB input gain, switchable ±6 dB or ±12 dB boost/cut range, 20mm nonconductive sliders, an intuitive user interface, and output level metering. From its extended 10Hz to 50kHz frequency response and 112 dB dynamic range to the quality componentry and meticulous attention to detail, the 231s offers exceptional sound and rugged reliability that guarantees you will always sound your best.
Sure to find a home in the studio, on tour and with installed sound venues, the dbx 231s 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 affordable quality, there's no longer any excuse for compromising your sound.

dbx 231s Dual Channel 31-Band Graphic Equalizer

$299.00Price
Quantity

  • - Dual 31-band, 1/3-octave Constant Q frequency bands

    - Switchable boost/cut ranges of ±6 or ±12 dB

    - Front panel bypass switch

    - ±12 dB input gain range

    - 4-segment LED ladders for monitoring output levels

    - XLR and TRS Inpts and Outputs

    - Frequency Repsonse of <10Hz to >50kHz

    - Dynamic range of greater than 108dB

  • The Specs

    The Input

    Connectors 

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

    Type

    - Electronically balanced/unbalanced, RF filtered

    Impedance

    - Balanced 40k ohm, unbalanced 20k ohm

    Max Input Level 

    - >+21dBu balanced or unbalanced

    CMRR 

    - >40dB, typically >55dB at 1kHz

     

    Outputs

    Connectors

    - 1/4" TRS, male XLR (pin 2 hot)

    Type

    - Impedance-balanaced/unbalanced, RF filtered

    Impedance

    - Balanced 100 ohm, unbalanced 50 ohm

    Max Output Level 

    - >+21dBu balanced/unbalanced into 2k ohm or greater

    - >+18dBm balanced/unbalanced (into 600 ohm)

     

    System Performance

    Bandwidth

    - 20Hz to 20kHz, +0.5/-1dB

    Frequency Response

    - <10Hz to >50kHz, +0.5/-3dB

    Dynamic Range

    - Typicall >112dB

    Signal-to-Noise

    - Typically >95dB

    THD+Noise

    - <0.003%

    Interchannel Crosstalk 

    - <-90dB, 20Hz to 20kHz

     

    Function Switches

    EQ Bypass

    - Bypasses the graphic equalizer section in the signal path

    Low Cut

    - Activates the 50Hz 12dB/octave high-pass filter

    Range

    - Selects either +/- 6dB or +/- 12dB slider boost/cut range

     

    Power Supply

    Operating Voltage

    - 100VAC-240VAC 50/60Hz

    Power consumption

    - 15W

    Mains Connection

    - IEC receptacle

     

    Physical

    Weight

    - 6.2 lbs.(2.81 kg)

    Shipping weight

    - 7.9 lbs.(3.58kg)

    Dimensions

    - 3.5" (8.9cm) H x 6"(15.24cm) D x 19" (48.26cm) W

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