Same Day Despatch

More Views

  • Email a Friend
  • Print

DBX 1231 Dual Chanel 31-Band Equalizer

Dual 31 Band Graphic EQ - Ex Display - Last One!

Availability: Out of stock

Price match
  • DBX 1231 Dual Chanel 31-Band Equalizer Details

    The dbx 12 Series were designed to meet the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls.

    The 1231 provides standard features like dual-channels, 31 1/3 octave bands, ISO frequency centers, +/- 12 dB input gain range, and switchable 40Hz/18 dB per octave low-cut filters, but also includes other insightful features.

    These include 45 mm faders; selectable +/-6dB or +/-15dB boost/cut range for precise gain adjustments; XLR, barrier strip, and 1/4'' TRS connectors for installation ease; balanced inputs and outputs for quiet operation; and chassis/signal ground lift capabilities for quick hum isolation.


    • Switchable boost/cut ranges of ±6 or ±15 dB
    • Electronically balanced/unbalanced inputs
    • Servo balanced/unbalanced outputs
    • RF filtered inputs and outputs
    • XLR, Barrier Strip, and 1/4" TRS connectors
    • -12dB/+12dB input gain range
    • 18dB/octave 40Hz Bessel low-cut filter
    • Chassis/signal ground lift capability
    • Internal power supply transformer
    • Power-off hardwire relay bypass with 2-second power-up delay.


    Connectors: 1/4" TRS, female XLR (pin 2 hot), and barrier terminal strip

    Type: Electronically balanced/unbalanced, RF filtered

    Impedance: Balanced 40 kOhm, unbalanced 20 kOhm

    Max Input Level:  >+21dBu balanced or unbalanced

    CMRR: >40dB, typically >55dB at 1kHz


    Connectors:  1/4" TRS, male XLR (pin 2 hot), and barrier terminal strip

    Type:  Impedance-balanaced/unbalanced, RF filtered

    Impedance: Balanced 200 ohm, unbalanced 100 ohm

    Max Output Level: 

    >+21dBu balanced/unbalanced into 2 kOhm 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

    +/-15dB range +/-6dB range

    Dynamic Range: 109dB 115dB

    Signal - to -Noise: 90dB, 97dB

    THD + Noise:  <0.005%

    Interchannel Crosstalk:  <-80db, 20Hz to 20kHz

    Function Switches

    EQ Bypass: Bypasses the graphic equalizer section in the signal path

    Low Cut (recessed): Activates the 40Hz 18dB/octave Bessel high-pass filter

    Range (recessed): Selects either +/- 6dB or +/- 15dB slider boost/cut range


    Output Level Meter:  4-LED bar graph (Green, Green, Yellow, Red) at -10, 0, +10, and +18dBu

    EQ Bypass:  1 LED: Red

    Clip: 1 LED: Red

    Low Cut: 1 LED: Red

    +/-6dB: 1 LED: Yellow

    +/-15dB: 1 LED: Red

    Power Supply

    Operating Voltage:

    100VAC 50/60Hz, 120VAC 60Hz

    230VAC 50/60Hz

    Power Consumption: 24W

    Main Connection: IEC receptacle


    Height 13.4cm

    Width: 48.3cm

    Depth: 20.1cm

    Weight: 5.2 kg

  • Detailed Shipping & Return Policy Information

    Postage Prices

    • Free Delivery - 3 to 5 Days
    • Express Delivey ($20) - 1 to 3 Days
    • Store Pick Up (South Melbourne) - Free


    Delivery Time frame

    Soundcorp will ship all goods the first business day once all funds have cleared.


    Refunds and Returns

    Defective or dead on arrival items, will be exchanged within 14 days. Return shipping is the responsibility of the customer.

  • Write Your Own Review

    You're reviewing: DBX 1231 Dual Chanel 31-Band Equalizer

    How do you rate this product? *

      1 star 2 stars 3 stars 4 stars 5 stars
  • CAPTCHA Image
  • Soundcorp will match or beat any advertised price on products in-store and on-line.
    Complete the details below and a customer support representative will contact you directly with our offer.

    • Limited to products offered by authorised Australian dealers.
    • Excludes stock liquidations & commercial quantity's.
    • Product for price match must be identical and brand new in the box.
    • Product must be in stock or readily available with an authorised vendor.
    • The advertised product must be freely available to purchase by any member of the public.

    * Required Fields