131 (discontinued)

131front lg medium 131rear lg medium

Suggested alternative: 131s

The dbx® 2-Series Graphic Equalizer series have been designed to meet the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls. The 131 not only offers standard features like single-channel, 31, 1/3 octave bands, ISO frequency centers, +/- 12 dB input gain range, and switchable 50Hz/12 dB per octave low-cut filter, but also includes other insightful features. These features include 20 mm faders; selectable +/-6dB or +/-12dB boost/cut range for precise gain adjustments; XLR, and 1/4'' TRS connectors for installation ease; balanced inputs and outputs for quiet operation. The visionary design of the dbx 2-Series makes your job easier.

The 2-Series represents a major step forward in the performance of entry-level graphic equalizers. From its amazing 10Hz to 50kHz frequency response, to its 108dB dynamic range, internal torodial transformer, the 2-Series offers out of this world specifications with a down to earth price point. Sure to find a home in the studio, on tour and with installed sound venues, the 2-Series is destined to take its rightful place in the lineage of great dbx® signal processors that are the professional's choice in signal processing. With such affordable quality there's no longer any excuse for compromising your sound.

Features

  • Single 31-band, 1/3-octave Constant Q frequency bands
  • Switchable boost/cut ranges of ±6 or ±12dB
  • 12dB per octave, 3dB down @ 50Hz low-cut filter
  • Front panel bypass switch
  • ±12 dB input gain range
  • 4-segment LED ladders for monitoring output levels
  • XLR and TRS Inputs and Outputs
  • Internal Toroidal Transformer
  • Frequency Repsonse of <10Hz to >50kHz
  • Dynamic range of greater than 108dB

Specifications

Input Connectors 1/4" TRS, female XLR (pin 2 hot)
Input Type Electronically balanced/unbalanced, RF filtered
Input Impedance Balanced 40k ohm, unbalanced 20k ohm
Max Input >+21dBu balanced or unbalanced
CMRR >40dB, typically >55dB at 1kHz
Output Connectors 1/4" TRS, male XLR (pin 2 hot)
Output Type Impedance-balanced/unbalanced, RF filtered
Output Impedance Balanced 100 ohm, unbalanced 50 ohm
Max Output >+21dBu balanced/unbalanced into 2k ohm or greater; >+18dBm balanced/unbalanced (into 600 ohm)
Bandwidth 20Hz to 20kHz, +0.5/-1dB
Frequency Response <10Hz to >50kHz, +0.5/-3dB
Dynamic Range 108dB
Signal to Noise Ratio 90dB
THD+Noise <0.004%
Interchannel Crosstalk <-80dB, 20Hz to 20kHz
Bypass Switch Bypasses the graphic equalizer section in the signal path
Low cut Switch Activates the 50Hz 12dB/octave high-pass filter
Range Switch Selects either +/- 6dB or +/-12dB slider boost/cut range
Operating Voltage 100VAC 50/60Hz; 120VAC 60Hz; 230VAC 50/60Hz
Power Consumption 12W
Power Connector IEC receptacle

Manuals/Documentation