DBX 131

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

Specifications

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

Note: Specifications subject to change without notice.

Document

Cut Sheet

User Manual