dbx 231S Dual 31-Band Graphic EQ

Exceptional sound and rugged reliability

When the pros need an EQ, they turn to dbx. With a proven track record that spans four decades, dbx EQ’s are the industrystandard for touring, studios, and audio installations. With the dbx heritage of revered pro EQs, the 231s meets the needs ofthe most demanding sound reinforcement environments, while offering the simplicity of straightforward controls.

The dbx 231s includes two 31-band channels of 1/3-octave equalization, ±12 dB input gain, switchable ±6 dB or ±12 dBboost/cut range, 20mm nonconductive sliders, an intuitive user interface, and output level metering. From its extended10Hz to 50kHz frequency response and 112 dB dynamic range to the quality componentry and meticulous attention todetail, 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 rightfulplace in the lineage of great dbx signal processors that are the professional’s choice in signal processing. With suchaffordable quality, there’s no longer any excuse for compromising your sound.

• Connectors: 1/4" TRS, female XLR (pin 2 hot)
• Type: Electronically balanced/unbalanced, RF filtered
• Impedance: Balanced 40kO, unbalanced 20kO
• Max Input Level: >+21dBu balanced or unbalanced
• CMRR: >40dB, typically >55dB at 1kHz

• Connectors: 1/4" TRS, male XLR (pin 2 hot)
• Type: Impedance-balanced/unbalanced, RF filtered
• Impedance: Balanced 100O, unbalanced 50O
• Max Output Level: >+21dBu balanced/unbalanced into
• 2kO or greater
• >+18dBm balanced/unbalanced (into 600O)

• Bandwidth: 20Hz to 20kHz, +0.5/-1dB
• Frequency Response: <10Hz to >50kHz, +0.5/-3dB
• Dynamic Range: Typically >112dB
• Signal-to-Noise: Typically >95dB
• THD+Noise: <0.003%
• Interchannel Crosstalk:

• 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

• Operating Voltage: 100-240VAC 50/60Hz
• Power Consumption: 15W
• Mains Connection: IEC receptacle

• Weight: 6.2 lbs.(2.81 kg) Shipping weight 7.9 lbs. (3.58 kg)
• Dimensions: 3.5" (8.9cm) H x 6"(15.24cm) D x 19" (48.26cm) W