DBX 2231 Dual Channel 31-Band Graphic Equalizer/Limiter - SKU#1780106

Picture does not represent the actual item
See what's in the box

See all DBX items

Used DBX 2231 Dual Channel 31-Band Graphic Equalizer/Limiter with Type III Noise Reduction

SKU: US1780106

This item is no longer available.

Recommended Items

DBX 231s Graphic Equalizer: Picture 1 regular
dbx 231s Dual Channel 31-Band Equalizer
$406.25$325.00
DBX 215s Graphic Equalizer: Picture 1 regular
dbx 215s Dual Channel 15-Band Graphic Equalizer
$337.50$270.00
DBX 131s Graphic Equalizer: Picture 1 regular
dbx 131s Single Channel 31-Band Graphic Equalizer
$299.17$265.00
Overview
Compare
Specs
Protection
Q&A

Questions & Answers

Reviews about this item

Review Summary

Select a plan in the Add Protection section above and purchase with this product by clicking “Add to Cart”.

image-protection

TRUSTED PROTECTION PLANS, EXCEPTIONAL SERVICE.

Invest in Pre-Owned Gear & Peace of Mind!

Extend coverage on pre-owned products after the retailer warranty ends and protect photo & video gear from accidental damage with Adorama Protect.

Repair or Replacement

Repair or Replacement

If we can’t fix it, we’ll replace it at no additional cost.

Accidental Damage

Extended Protection

Coverage for pre-owned gear begins after the retailer warranty ends, plus accidental damage protection for photo/video gear that starts on day one.

Peace of Mind

Peace of Mind

Enjoy your gear without fear. We have you covered!

Malfunction Protection

Malfunction Protection

When regular use of your product over time results in mechanical or electrical failure.

Zero Deductible

Zero Deductible

We will never charge you a deductible after the purchase of a plan.

Customer-Focused Support

Customer-Focused Support

Our claims process is simple & easy and our customer service team is happy to help.

Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for International and U.S. territories purchases. Plans on pre-owned items do not cover pre-existing damages.

Browse our FAQ

See Terms & Conditions

DBX 2231 Dual Channel 31-Band Graphic Equalizer/Limiter - SKU#1780106 Specifications

  • Input: Connectors

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

  • Input: Type

    Electronically balanced/unbalanced, RF filtered

  • Input: Impedance

    Balanced 40k ohm, unbalanced 20k ohm

  • Max Input Level

    >+21dBu balanced or unbalanced

  • Input: CMRR

    >40dB, typically >55dB at 1kHz

  • Output: Connectors

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

  • Output: Type

    Impedance-balanced/unbalanced, RF filtered

  • Output: Impedance

    Balanced 200 ohm, unbalanced 100 ohm

  • Max Output Level

    >+21dBu balanced/unbalanced into 2k or greater+20dBm balanced/unbalanced (into 600)

  • Bandwidth

    20Hz to 20kHz, +/-0.5dB

  • Frequency Response

    <10Hz to >50kHz, +0.5/-3dB

  • Dynamic Range

    >120dB unweighted, noise reduction in112dB unweighted, noise reduction out (+/-6dB range)108dB unweighted, noise reduction out (+/-15dB range)

  • Noise

    >102dB unweighted, noise reduction in94dB unweighted, noise reduction out (+/-6dB range)90dB unweighted, noise reduction out (+/-15dB range)

  • Signal-to-Noise

    >102dB, unweighted, ref: +4dBu, 22kHz measurement bandwidth94dB, unweighted, ref: +4dBu, 22kHz measurement bandwidth90dB, unweighted, ref: +4dBu, 22kHz measurement bandwidth

  • THD + Noise

    <0.04%, 0.02% typical at +4dBu, 1kHz

  • Interchannel Crosstalk

    <-80dB, 20Hz to 20kHz

  • Noise Reduction

    Up to 20dB of dynamic broadband noise reduction

  • Type III NR

    Activates dbx Type III Noise Reduction

  • EQ Bypass

    Bypasses the Graphic Equalizer section in the signal path

  • EQ Bypass

    Bypasses the Graphic Equalizer section in the signal path

  • Low Cut (recessed)

    Bypasses the Graphic Equalizer section in the signal path

  • 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

  • Gain Reduction Meter

    4-LED bar graph (all Red) at 0, 3, 6 and 10dB

  • Type III NR Active

    Yellow LED

  • Clip

    Red LED

  • Low Cut Active

    Red LED

  • +/-6dB range

    Yellow LED

  • +/-12dB range

    Red LED

  • Operating Voltage

    100VAC 50/60Hz, 120VAC 60Hz
    230VAC 50/60Hz

  • Power consumption

    23W

  • Main Connection

    IEC receptacle

  • Dimensions (H x W x D)

    5.25" x 19" x 7.9" / 13.3 x 48.3 x 20.1 cm)

About DBX 2231 Dual Channel 31-Band Graphic Equalizer/Limiter - SKU#1780106

The dbx 2231 is a dual channel, 31 band 1/3 octave graphic equalizer with a difference. In addition to the usual features such as 45mm center detented sliders with selectable boost/cut range, high pass filters, active balanced input and output connections, variable input level controls, clip level indicators and internal power supply, the unit provides both built-in noise reduction and peak limiting.

The noise reduction is dbx's Type III, which can increases the signal to noise ratio of the 2231 by up to 20dB at the push of a button. For further enhancement, a PeakPlus limiter is included. Front panel 41-detent rotary controls vary the threshold of the limiter, while four-LED gain reduction bar graphs display the resulting effect of the process. Additionally, the unit has EQ bypass switches with LED indicator for each channel, is housed in an all-steel constructed 3U chassis and is intended for installation in standard 19" equipment racks. The XLR and 1/4" TRS connectors use balanced, low noise circuitry and barrier strips are provided for added convenience.

The 2231 is designed to work with a variety of input signal levels and may be used in applications such as live sound, recording studios, instrument racks, as well as any conventional fixed installation environment.

DBX 2231 Dual Channel 31-Band Graphic Equalizer/Limiter - SKU#1780106 Features

  • Revolutionary instant encode/decode Type III Noise Reduction in-circuit at the push of a button. Increases S/N ratio by up to 20dB
  • Patent-pending PeakPlus Limiter threshold range from 0dBu to +24dBu (off) can transparently tame the wildest hits or the subtlest nuances of any signal
  • Four segment LED bargraph for BOTH Gain Reduction AND Output Level
  • Status LEDs offer visual feedback for all settings on the front panel

Used Guarantee

30-day money back!

Sell or Trade your Gear

Get started in 3 easy steps

What's in the box:

  • DBX 2231 Dual Channel 31-Band Graphic Equalizer
  • Item Note: Item Was Not Fully Tested; Missing Power Cable