Skip to Content

dbx 231s - Graphic EQ #DB231S #DBX231SV

dbx 231s Overview

The 231s from dbx is a dual channel, 31 band, 1/3 octave graphic equalizer housed in a dual space, rack mount chassis. The processor is equally suitable for live applications, audio installations, and for use in a studio.

The unit features 20mm non-conductive sliders that can be set to either +/-6dB or +/-12dB of boost or cut. A global control provides +/-12 dB of input gain. A 12dB per octave, 3dB down at 50Hz low-cut filter can also be switched in if required.

From its extended frequency response and excellent dynamic range, to the quality components and meticulous attention to detail, the 231s offers exceptional sound and rugged reliability.

Dual-channel, 31-band, 1/3-octave, constant-Q graphic EQ
Switchable boost/cut ranges of +/-6 or +/-12 dB
20mm non-conductive sliders
12 dB per octave, 3 dB down at 50 Hz low-cut filter
+/-12 dB input gain range
Front-panel bypass switch
4-segment LED ladders for monitoring output levels
XLR and 1/4" TRS inputs and outputs


Dbx 231s Specs

Filter TypeGraphic, constant Q
Number of Channels2
Frequency Bands31
Bandwidth1/3-octave
Range (Boost/Cut)+/-6dB or +/-12 dB, switchable
Inputs2 x XLR (pin 2 hot)
2 x 1/4" TRS phone
Input Impedance40kΩ balanced, 20kΩ unbalanced
Maximum Input Level>+21dBu balanced or unbalanced
Outputs2 x XLR (pin 2 hot)
2 x 1/4" TRS phone
Output Impedance100Ω balanced, 50Ω unbalanced
Maximum Output Level>+21dBu balanced/unbalanced into 2kΩ or greater
>+18dBm balanced/unbalanced into 600Ω
Frequency ResponseFR: <10Hz to >50kHz, +0.5/-3.0dB
Bandwidth: 20Hz to 20kHz, +0.5/-1.0dB
Dynamic Range>112dB typical
NoiseSNR: >95dB typical
THD + N<0.003%
Crosstalk<-90dB, 20Hz to 20kHz
CMRR>40dB, typically >55dB @ 1kHz
SwitchesEQ 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 Requirements100~240VAC 50/60Hz
15W power consumption
Dimensions (WxHxD)19 x 6 x 3.5" (483 x 152 x 89mm)
Weight6.2 lb (2.8kg)
Specialties20mm non-conductive sliders
Packaging Info
Package Weight8.1 lb
Box Dimensions (LxWxH)21.7 x 11.3 x 4.8"
UPC: 691991401206
Price
273.10 273.10

Terms and Conditions
30-day money-back guarantee
Shipping: 2-3 Business Days