Exceptional sound and rugged reliability.

With the dbx heritage of revered pro EQs, the 231s Dual-Channel 31-Band Graphic Equalizer allows for sound frequency control in the most demanding sound reinforcement environments while offering the simplicity of straightforward faders and controls.

The dbx 231s includes two channels of 31-band channel of 1/3-octave equalization, ±12 dB input gain, switchable ±6 dB or ±12 dB boost/cut range, 20mm non-conductive sliders, an easy-to-use interface, and LED output level metering. From its extremely wide frequency response and 112 dB dynamic range to the high-quality components and meticulous attention to detail, you can be sure the 231s will offer exceptional sound and rugged reliability.

Sure to find a home in the studio, on tour and with installed sound venues, the dbx 231s is yet another tool in the growing 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

• Dual 31-band, 1/3-octave Constant Q frequency bands
• Switchable boost/cut ranges of ±6 or ±12dB
• Front panel bypass switch
• XLR and 1/4" TRS inputs and outputs
• 4-segment LED ladders for output monitoring

Specifications

• Input Connectors: 1/4" TRS, female XLR (pin 2 hot)
• Input Type: Electronically balanced/unbalanced, RF filtered
• Input Impedance: Balanced 40 kΩ, unbalanced 20 kΩ
• Max Input: >+21 dBu balanced or unbalanced
• CMRR: >40 B, typically >55 dB at 1 kHz
• Output Connectors: 1/4" TRS, male XLR (pin 2 hot)
• Output Type: Impedance-balanced/unbalanced, RF filtered
• Output Impedance: Balanced 100 Ω, unbalanced 50 Ω
• Max Output: >+21 dBu balanced/unbalanced into 2 kΩ or greater; >+18 dBm balanced/unbalanced (into 600 Ω)
• Bandwidth: 20 Hz to 20 kHz, +0.5/-1 dB
• Frequency Response:< 10 Hz to >50 kHz, +0.5/-3 dB
• Dynamic Range: Typically >112 dB
• Signal to Noise Ratio: Typically >95 dB
• THD+Noise:< 0.003%
• Interchannel Crosstalk:< -90 dB, 20 Hz to 20 kHz
• Bypass Switch: Bypasses the graphic equalizer section in the signal path
• Low Cut Switch: Activates the 50 Hz 12 dB/oct. high-pass filter
• Range Switch: Selects either ±6 dB or ±12 dB slider boost/cut range
• Operating Voltage: 100-240VAC 50/60 Hz
• Power Consumption: 15 W
• Power Connector: IEC receptacle
• Dimensions (H x W x D): 3.5" x 19" x 6" (8.9 x 48.26 x 15.24 cm)
• Weight: 6.2 lbs.(2.81 kg)