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1231 - dbx by Harman 1231 2 Channel 31 Band Equalizer, 3U...

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Part Number:
1231
Model Number:
1231
Make:
DBX BY HARMAN
Lead Time:
Available
Qty In Stock:
Available

dbx by Harman 1231 2 Channel 31 Band Equalizer, 3U 19" | EQ Series DBX 1231 Dual Chanel 31-Band Equalizer - 31 1/3 octave bands, ISO frequency centers, +/- 12 dB input gain range, and switchable 40Hz/18 dB per octave low-cut filters, balanced inputs /outputs for quiet operation, ground lift capabilities Simple Type: Audio Processing & Recording

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. The visionary design of the dbx 12 Series makes your job easier. The dbx 12 Series Equalizers were precision engineered to provide years of maintenance-free operation in any application. The magnetically isolated transformer, electronically balanced/unbalanced inputs and servo balanced/unbalanced outputs, RF-filtered inputs and outputs, and power-off hard-wire relay bypass with 2 second power up delay were steps our engineers took to ensure compatibility for all installations. Only the best components were utilized, yielding a 10Hz to 50kHz frequency response, greater than 90dB SNR (ref +4dBu), less than 0.005% THD +Noise (1kHz at +4dBu), and interchannel crosstalk of less than -80dB from 20Hz to 20kHz. All this attention to detail is contained in a 3U steel/aluminum chassis.

Download the datasheet (PDF)

For Resellers and High Volume Orders:
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Features

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

Specifications

    General
  • +/-15dB range Dynamic range: 109db
  • +/-15dB range Signal-to-Noise: 90db
  • +/-6dB range Dynamic Range: 115db
  • +/-6dB range Signal-to-Noise: 97db
  • Bandwidth: 20Hz to 20kHz, +0.5/-1dB
  • Dimensions: 5.25" H X 19" W X 7.9" D (13.4cm x 48.3cm x 20.1cm)
  • EQ Bypass: Bypasses the graphic equalizer section in the signal path
  • Frequency Response: <10Hz to >50kHz, +0.5/-3dB
  • Indicators +/-15dB: 1 LED: red
  • Indicators +/-6dB: 1 LED: yellow
  • Indicators Clip: 1 LED: red
  • Indicators EQ Bypass: 1 LED: red
  • Indicators Low Cut: 1 LED: red
  • Indicators Output Level: 4-LED bar graph (Green, Green, Yellow, Red) at -10, 0, +10, and +18dBu
  • Input CMRR: >40dB, typically >55dB at 1kHz
  • Input Connectors: 1/4" TRS, female XLR (pin 2 hot), and barrier terminal strip
  • Input Impedance: Balanced 40kO, unbalanced 20kO
  • Input Type: Electronically balanced/unbalanced, RF filtered
  • Interchannel Crosstalk: <-80dB, 20Hz to 20kHz
  • Low Cut (recessed): Activates the 40Hz, 18dB/octave Bessel high-pass filter
  • Mains Connection: IEC receptacle
  • Max Input Level: >+21dBu balanced or unbalanced
  • Max Output Level: >+21dBu balanced/unbalanced into 2kO or greater >+18dBm balanced/unbalanced (into 600O)
  • Operating Voltage: 100VAC 50/60Hz, 120VAC, 60Hz, 230VAC 50/60Hz
  • Output Connectors: 1/4" TRS, male XLR (pin 2 hot), and barrier terminal strip
  • Output Impedance: Balanced 200O, unbalanced 100O
  • Power Consumption: 24W
  • Range (recessed): Selects either +/- 6dB or +/- 15dB slider boost/cut range
  • THD+Noise: <0.005%
  • Weight: 10.6 lbs.

 

Applications

  • None Available

Aliases

  • None Available