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

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

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.

You used to have to settle for second best in a reasonably priced EQ but not any more. With the new 20 Series from dbx Professional Products you get a great EQ circuit, a graceful yet powerful limiter and the revolutionary design of the Type III Noise Reduction. You'll see, with the 20 Series EQs you get MORE!!! Revolutionary instant encode/decode Type III(R) Noise Reduction in-circuit at the push of a button. Increases S/N ratio by up to 20dB Patent-pending PeakPlus(R) Limiter threshold range from 0dBu to +24dBu (off) can transparently tame the wildest hits or the subtlest nuances of any signal An extremely high quality EQ, patent-pending Type III Noise Reduciton, and the elegant new PeakPlus Limiter all in one great sounding box Four segment LED bargraph for BOTH Gain Reduction... 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.

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

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.

2-Channel 31-Band Graphic Equalizer

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

Equalizer Booster

The BBE EQA-231 is a professional dual 31-band graphic equalizer. ideal for use in live sound rigs and installed setups such as studio stage DJ and sound contracting. The EQA-231 utilizes Constant-Q filters (constant bandwidth) this means that the bandwidth of each individual filter has a perfect balance between being narrow enough to prevent unwanted interaction between filters yet wide enough to deliver exactly the type of correction curve for the ultimate in precision equalizing. Height: 7Width: 0Weight: 5

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-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

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

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. dbx started out to build the finest EQ's possible, boxes with the heritage and performance to rival their famous 30 Series EQ's.

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