It's amazing. One little button. It has so much effect. The Type III® Noise Reduction is an entirely new concept... virtually instantaneous encode/decode within the circuitry of the box. We started out to build the finest EQ's possible, boxes with the heritage and performance to rival our famous 30 Series EQ's. And to no one's surprise they came out awfully darn good. (Ask to see the Audio Precision plots compared to the competition.) But then, Roger (our chief engineer, a nice guy, as far as engineers go) got the crazy idea of putting this new noise reduction stuff in the box. We listened to it and were amazed. The EQ's sounded great without it but with it the performance was nothing short of incredible. Check it out yourself and see. But hey, Roger wasn't about to stop there... Less

2 channel 31-band graphic equalizer with dual range (± 12dB/± 6dB) gain switches for precise control. Continuously variable high pass filters allow independent filtering from 20Hz-200Hz. Excellent for acoustic tuning and feedback control.

With the DBX heritage of revered pro EQs, the  DBX 131S 31 Band Graphic Equalizer meets the needs of the most demanding sound reinforcement environments, while offering the simplicity of straight forward controls. DBX 131S 31 Band Graphic Equalizer Features: Single 31 band, 1/3 octave Constant Q frequency bands Switchable boost/cut ranges of +/-6 or +/-12dB 12dB per octave, 3dB down at 50Hz low-cut filter 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 131S graphic EQ includes a single 31 band channel of 1/3 octave equalization, +/-12 dB input gain, switchable +/-6 dB or +/-12 dB... Less

The dbx(R) 12 Series were designed to meet the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls. The 1231 provides standard features like dual-channels, 31 1/3 octave bands, ISO frequency centers, +/- 12 dB input gain range, and switchable 40Hz/18 dB per octave low-cut filters, but also includes other insightful features. These include 45 mm faders; selectable +/-6dB or +/-15dB boost/cut range for precise gain adjustments; XLR, barrier strip, and 1/4'' TRS connectors for installation ease; balanced inputs and outputs for quiet operation; and chassis/signal ground lift capabilities for quick hum isolation. The visionary design of the dbx 12 Series makes your job easier. Switchable boost/cut ranges of 6 or 15 dB ... Less

The dbx 131S Graphic Equalizer series has been designed to meet the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls.

There's a reason many of today's top live sound professionals turn to dbx for live sound EQs. With dbx's impeccable history of making robust and reliable graphic EQs, they've become a standard in touring rigs and installed PA systems everywhere. The dbx 131s 31-band graphic equalizer lives up to the legacy - providing 1/3-octave Constant Q control beyond the audible frequency spectrum. Equipped with a switchable +/-6dB or +/-12dB and an internal toroidal transformer, the 131s gives you fine control and superb sound quality. And with over 108dB of dynamic range, you know your sound is in good hands when you trust it to the dbx 131s graphic EQ.dbx 131s Single-channel 31-band Equalizer Features at a Glance:1/3-octave Constant Q frequency bands Switchable boost/cut ranges of +/-6 or +/-12dB... Less

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.

LA Audio EQ231G Dual 31 Band 1/3 Octave Graphic Equalizer The EQ231G is a dual 31 band 1/3 Octave Graphic Equaliser in a robust 3U high case. The band pass filters are based around precision minimum phase active RC networks to deliver superior dynamic range and signal to noise performance. Long throw faders provide maximum sensitivity and control of 12dB cut and boost at 31 ISO centre frequencies from 20Hz to 20KHz.The new and improved EQ231G now incorporates a 24dB/octave, Butterworth type, Hi

dbx 131s Single Channel 31-Band Graphic Equalizer Description 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 EQs are the industry standard for touring studios and audio installations. With the dbx heritage of revered pro EQs the 131s meets the needs of the most demanding sound reinforcement environments while offering the simplicity of straightforward controls.The dbx 131s includes a single 31-band chann

DBX-1231 The dbx® 12 Series were designed to meet the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls. The 1231 provides standard features like dual-channels, 31 1/3 octave bands, ISO frequency centers, +/- 12 dB input gain range, and switchable 40Hz/18 dB per octave low-cut filters, but also includes other insightful features. These include 45 mm faders; selectable +/-6dB or +/-15dB boost/cut range for precise gain adjustments; XLR, barrier strip, and 1/4'' TRS connectors for installation ease; balanced inputs and outputs for quiet operation; and chassis/signal ground lift capabilities for quick hum isolation. The visionary design of the dbx 12 Series makes your job easier. The dbx 12 Series Equalizers were precision... Less

Single Channel 31 Band Graphic Equalizers Balanced XLR and 1/4" TRS input and output Hardwire bypass switch with LED indicator Quiet power-up and power-down modes Ultra-low noise and distortion 45mm High Resolution faders Selectable +/- 15dB or +/- 7.5dB cut/boost range with LED indicator Input signal level and peak LED meter The EQ-31 allows you to equalize with a new level of precision and may be the most transparent and accurate equalizer available. The EQ-31 Equalizer can be used in a variety of setups including: mixing consoles, fixed installation, in the effects loop of an amplifier, and in the tape loop of a home receiver. Self contained in an all steel two high 19 rack mount case, this equalizer is designed for continuous professional use. MODEL EQ-31 INPUT IMPEDANCE 10k ohm... Less

The Phonic GEQ3100 is a dual channel 31-band equalizer that offers 6 or 12 dB of cut or boost in 1/3 octave steps with standard ISO center frequencies between 20 Hz and 20 KHz. GEQ3100 is 2-rack space units high and accepts both 1/4" TRS phone jacks and XLR connectors making it ideal for almost any studio or live venue setup.Height: 3.52Width: 0Weight: 8

DBX 1231 31-band, 2-channel Graphic EQ with Switchable Boost/Cut Rang, XLR & TRS Connectors. The dbx® 12 Series were designed to meet the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls. The 1231 provides standard features like dual-channels, 31 1/3 octave bands, ISO frequency centers, +/- 12 dB input gain range, and switchable 40Hz/18 dB per octave low-cut filters, but also includes other insightful features. These include 45 mm faders; selectable +/-6dB or +/-15dB boost/cut range for precise gain adjustments; XLR, barrier strip, and 1/4'' TRS connectors for installation ease; balanced inputs and outputs for quiet operation; and chassis/signal ground lift capabilities for quick hum isolation. The visionary design of... Less

dbx 2231 Dual 31-Band Graphic Equalizer

With the new 20 Series from dbx Professional Products you get a great EQ circuit a graceful yet powerful limiter and the revolutionary new design of the Type III Noise Reduction. Check out the dbx 20 Series graphic EQ's at your pro audio outfitter

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. With the dbx heritage of revered pro EQs, the 131s meets the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls.The dbx 131s includes a single 31-band channel 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 110 dB dynamic range to the quality componentry and meticulous attention to detail, the 131s offers exceptional sound and rugged reliability that guarantees you... Less