Item #: DBX 231SV LIST

dbx 231S Dual Channel 31 Band 1/3 Octave Graphic Equalizer

Shop dbx 231S Dual Channel 31 Band 1/3 Octave Graphic Equalizer from AMS with 0% Interest Payment Plans and Free Shipping.

3 Payments of $73.00
MSRP: $249.00
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Product Description

The DBX 231S Dual 31-Band Graphic Equalizer meets the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls. When the pros need an EQ, they turn to DBX.

DBX 231S Dual 31-Band Graphic Equalizer Features:

  • Dual 31-band, 1/3-octave Constant Q frequency bands
  • Switchable boost/cut ranges of ±6 or ±12 dB
  • Front panel bypass switch
  • ±12 dB input gain range
  • 4-segment LED ladders for monitoring output levels
  • XLR and TRS Inpts and Outputs
  • Frequency Repsonse of <10Hz to >50kHz
  • Dynamic range of greater than 108dB
The DBX 231S Equalizer includes two 31-band channels of 1/3-octave equalization, ±12 dB input gain, switchable ±6 dB or ±12 dB boost/cut range, 20mm nonconductive sliders, an intuitive user interface, and output level metering. From its extended 10Hz to 50kHz frequency response and 112 dB dynamic range to the quality componentry and meticulous attention to detail, the 231S graphic equalizer offers exceptional sound and rugged reliability that guarantees you will always sound your best.

Sure to find a home in the studio, on tour and with installed sound venues, the DBX 231S 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.

warning WARNING: Cancer and Reproductive Harm -

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Helpful Info about the Manufacturer
Phone:  (801) 566-8800 Warranty:  2 Years

Product Specifications

Product Specifications
DBX 231S Dual 31-Band Graphic Equalizer Specifications
  • Input:
    • Connectors: 1/4 inch 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 inch TRS, male XLR (pin 2 hot)
    • Type: Impedance-balanaced/unbalanced, RF filtered
    • Impedance: Balanced 100 ohm, unbalanced 50 ohm
  • System Performance: 
    • Bandwidth: 20Hz to 20kHz, +0.5/-1dB
    • Frequency Response: <10Hz to >50kHz, +0.5/-3dB
    • Dynamic Range: Typicall >112dB
    • Signal-to-Noise: Typically >95dB
    • THD+Noise: <0.003%
    • Interchannel Crosstalk: <-90dB, 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-240VAC 50/60Hz
    • Power consumption: 15W
    • Mains Connection: IEC receptacle 
  • Physical:
    • Weight: 6.2 lbs.(2.81 kg)
    • Dimensions(HxDxW): 3.5 x 6 x 19 inches (8.9x15.24x48.26cm)

Customer Reviews

Etoya Submitted: 2/3/2019
Product Rating
Worth the money
Product Rating
What is your opinion of this product?
Lightweight and high performance item
Lavell WHITTEN, Submitted: 11/15/2018
Product Rating
I am pretty happy with item
What is your opinion of this product?
I am pleased yet confused at my comfort zone I feel happy with how it sounds after adjusting it when I play it???????? with my Mixer & music/speakers!!!!!
R. Lewis Lightner Submitted: 5/28/2014
Product Rating
Product is Fine...AMS Advertising Expired $50 Rebate
Your general opinion of this product.
The product is fine. It does exactly what I purchased it for, hence me purchasing a dbx unit. I was, however, very disappointed that it said "$50 Rebate" on the product information page with AMS, and I received nothing with the product regarding a rebate, so I returned to the product information page and clicked for more details about the rebate, only to discover that for said rebate, the product had to have been purchased prior to 03/31/2014...yet the offer for a $50 rebate was still listed as of 05/19/2014 when I purchased TWO of these units...and was excited that I would be getting $100 back by purchasing through AMS. I wouldn't be as concerned...but I considering I ordered well over $3000.00 worth of gear...getting $100.00 back was a nice perk. Needless to say, I'm quite disappointed with AMS for false advertising.
For the cost of the unit, you really can't expect much more. I've only used the 2 units that I purchased for a few shows thusfar, but would anticipate a long life.
This is a pretty easy to use product in general if you have a relative amount of knowledge about sound reinforcement. I purchased two of these units to use for feedback control on 4 monitor sends...and they are doing a sufficient job for the intended purpose.
The filters seem, at least based upon how it sounds "by ear" as opposed to a spectrum analyzer, to be accurate. I'm using these to EQ 4 monitor sends, and have been able to find and cut out any feedback prone frequencies at a few live shows since I purchased them and really have no complaints...other than the false advertising regarding the $50 Rebate.


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