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

Priced: $529.95
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DBX 2231 Dual Channel 31-Band Graphic Equalizer/Limiter with Type III Noise Reduction -

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.

Features:

  • Status LEDs offer visual feedback for all settings on the front panel
  • Revolutionary instant encode/decode Type III Noise Reduction in-circuit at the push of a button. Increases S/N ratio by up to 20dB
  • Four segment LED bargraph for BOTH Gain Reduction AND Output Level
  • Patent-pending PeakPlus Limiter threshold range from 0dBu to +24dBu (off) can transparently tame the wildest hits or the subtlest nuances of any signal
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+/-12dB range:Red LED
+/-6dB range:Yellow LED
Bandwidth:20Hz to 20kHz, +/-0.5dB
Clip:Red LED
Dimensions (H x W x D):5.25" x 19" x 7.9" / 13.3 x 48.3 x 20.1 cm)
Dynamic Range:>120dB unweighted, noise reduction in 112dB unweighted, noise reduction out (+/-6dB range) 108dB unweighted, noise reduction out (+/-15dB range)
EQ Bypass:Red LED
Frequency Response:<10Hz to >50kHz, +0.5/-3dB
Gain Reduction Meter:4-LED bar graph (all Red) at 0, 3, 6 and 10dB
Input: CMRR:>40dB, typically >55dB at 1kHz
Input: Connectors:1/4" TRS, female XLR (pin 2 hot) and barrier terminal strip
Input: Impedance:Balanced 40k ohm, unbalanced 20k ohm
Input: Type:Electronically balanced/unbalanced, RF filtered
Interchannel Crosstalk:<-80dB, 20Hz to 20kHz
Low Cut (recessed):Bypasses the Graphic Equalizer section in the signal path
Low Cut Active:Red LED
Main Connection:IEC receptacle
Max Input Level:>+21dBu balanced or unbalanced
Max Output Level:>+21dBu balanced/unbalanced into 2k or greater +20dBm balanced/unbalanced (into 600)
Noise:>102dB unweighted, noise reduction in 94dB unweighted, noise reduction out (+/-6dB range) 90dB unweighted, noise reduction out (+/-15dB range)
Noise Reduction:Up to 20dB of dynamic broadband noise reduction
Operating Voltage:100VAC 50/60Hz, 120VAC 60Hz 230VAC 50/60Hz
Output Level Meter:4-LED bar graph (Green, Green, Yellow, Red) at -10, 0, +10 and +18dBu
Output: Connectors:1/4" TRS, male XLR (pin 2 hot) and barrier terminal strip
Output: Impedance:Balanced 200 ohm, unbalanced 100 ohm
Output: Type:Impedance-balanced/unbalanced, RF filtered
Power consumption:23W
Range (recessed):Selects either +/- 6dB or +/-15dB slider boost/cut range
THD + Noise:<0.04%, 0.02% typical at +4dBu, 1kHz
Type III NR:Activates dbx Type III Noise Reduction
Type III NR Active:Yellow LED

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