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dbx 1231 - Dual Channel 31-Band Graphic Equalizer

dbx 1231 - Dual Channel 31-Band Graphic Equalizer with 6 or 15 dB Switchable Boost/Cut and RF Filtered I/O's

dbx 1231 - Dual Channel 31-Band Graphic Equalizer with 6 or 15 dB Switchable Boost/Cut and RF Filtered I/O's

B&H # DB1231 MFR # DBX1231V
dbx 1231 - Dual Channel 31-Band Graphic Equalizer

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Overview
  • 1Description

The 1231 is dual channel, 31 band 1/3 octave graphic equalizer. It was designed to meet the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls.

The sliders of the 1231 are 45mm center detent, with two selectable boost/cut ranges for precise gain adjustments. The unit features high pass filters with bypass, active balanced input and output connections, chassis/signal ground lift capabilities for quick hum isolation and an internal power supply. Multiple input and output configurations are provided for ease of use. The XLR and 1/4" TRS connectors use active balanced, low noise circuitry, with the addition of barrier strips.

The 1231 was precision engineered to provide years of maintenance-free operation in any application. The magnetically isolated transformer, RF-filtered inputs and outputs, and power-off hard-wire relay bypass with two second power up delay, ensures compatibility with all types of installations.

Dual channel 31 band 1/3 octave graphic equalizer
Switchable Boost/Cut range between +/-6dB and +/-15dB
45mm center detent sliders
Fixed high-pass filters
Variable input level controls
Active balanced input and output connections
RF filtered inputs and outputs
Chassis/signal ground lift capability
UPC: 691991400049
In the Box
dbx 1231 - Dual Channel 31-Band Graphic Equalizer with 6 or 15 dB Switchable Boost/Cut and RF Filtered I/O's
  • Power Cable
  • Two Year Warranty
  • Table of Contents
    • 1Description
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    Specifications
    Filter Type Graphic
    Number of Channels 2
    Inputs 2 x XLR, 2 x 1/4" TRS phone, barrier strip
    Output 2 x XLR, 2 x 1/4" TRS phone, barrier strip
    Maximum Input Level +21dBu
    Frequency Bands 31 x 2, ISO spacing
    Bandwidth 1/3 octave
    Range (Boost/Cut) +/-6dB or +/-15dB selectable
    Maximum Output Level +21dBu
    Frequency Response 10Hz to 50kHz
    Dynamic Range 115dB
    Noise -97dBu
    Dimensions 3U rack, 7 15/16" deep
    Specialties Power-off hardwire relay bypass with 2-second power-up delay
    Packaging Info
    Package Weight 13.84 lb
    Box Dimensions (LxWxH) 22.5 x 11.5 x 7.6"

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