dbx 231S Dual 31-Band Graphic Equalizer

Shape your venue's sound and cut out feedback with this dual 31-band graphic EQ. A serious value, the 231S equalizer offers dbx quality -- in 2 rack spaces.
When the pros need an EQ, they turn to dbx. With a proven track record that spans four decades, dbx EQs are the industry standard for touring, studios, and audio installations. The dbx 231S Graphic Equalizer meets the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls.

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 Inputs and Outputs
- Frequency Repsonse of <10Hz to >50kHz
- Dynamic range of greater than 108dB

The dbx 231S 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 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.
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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)
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 8 lbs
Shipping Dimensions: 22 x 11 x 5 in
Manufacturer Part Number (MPN): DBX231SV
For support or warranty questions, please contact the manufacturer:
Phone: 844-776-4899
(3 ratings)
Submitted January 26, 2017 by Richard Dicks in Bakersville, NC
"I got to buy one"
Verified Customer zZounds has verified that this reviewer made a purchase from us.
I had to borrow a EQ and they had a 131s and it was great easy to put in to the system made the sound clean So now I'm going to buy the 231s for the difference in cost its worth it and I'm sure the 2nd channel will get used
Musical Background:
45 years we do light and P.A for all kinds of events
Musical Style:
all kinds
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