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DBX 2031 Single Channel 31-Band Graphic Equalizer/Limiter with Type III Noise Reduction

SKU: DBX2031 MFR: 2031
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About this item

The dbx 2031 is a single 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 filter, active balanced input and output connections, variable input level control, 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 increase the signal to noise ratio of the 2031 by up to 20dB at the push of a button. For further enhancement, a PeakPlus limiter is included. A front panel 41-detent rotary control varies the threshold of the limiter, while a four-LED gain reduction bar graph displays the resulting effect of the process. Additionally, the unit has an EQ bypass switch with LED indicator, is housed in an all-steel constructed 2U 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 2031 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.

What's Included With This Item

  • dbx 2031 Single Channel 31-Band Graphic Equalizer/Limiter
  • Power Cable
  • dbx 2 Years Limited Warranty

Key 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
  • An extremely high quality EQ, patent-pending Type III Noise Reduction and the elegant new PeakPlus Limiter all in one great sounding box
  • Four segment LED bargraph for BOTH Gain Reduction AND Output Level offers the most comprehensive visual feedback available
  • Status LEDs offer visual feedback for all settings on the front panel

Technical Specs

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
>+18dBm 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
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
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
Gain Reduction Meter 4-LED bar graph (all Red) at 0, 3, 6 and 10dB
Type III NR Active Yellow LED
EQ Bypass Red LED
Low Cut Active Red LED
+/-6dB range Yellow LED
+/-15dB range Red LED
Operating Voltage 100VAC 50/60Hz, 120VAC 60Hz
230VAC 50/60Hz
Power consumption 12W
Main Connection IEC receptacle
Dimensions (H x W x D) 3.5" x 19" x 7.9" / 8.9 x 48.3 x 20.1 cm
Weight 8.5 lbs. (3.9 kg)
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