An Introductory Guide to Subwoofers 
Using the Behringer FBQ 2496
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Hey, what's the FBQ2496?

The FBQ2496 is the latest version of the Feedback Destroyer. Unlike it's predecessor, the FBQ2496 does not have multiple banks of filters. It has one bank consisting of 2 filter channels. Each channel has 20 programmable stereo parametric filters. The bandwidth of each filter has a range of 1/60th octave to 10 full octaves. FBQ2496 owners manual tells how to operate the FBQ2496 as a PEQ (parametric equalizer). A basic set of instructions are as follows....
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1) Turn on the FBQ2496, using the Power button (#18), before you turn on your sub's power amp.

Add section HERE about choose a filter #

 2) Push the PEQ (#11) button as seen in the illustration below. This puts the unit into the PEQ (parametric equalization) mode. The green LED inside the PEQ button will light up.  

If both Left and Right LED's in button (#13) aren't lit, push in the center of the button until both LED's light up. This puts the unit into stereo operation for the filters you program.

2) Next push the (#12) Frequency button,  the LED in the button will light up. Use the (#17) Rotary Dial to select the frequency you want to adjust. The frequency will read out like that in the illustration below.

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If the frequency is in Hz (20 to 999Hz), the LED beside the Hz indicator will light up. If you go above .999 you'll see the kHz indicator light up. The lowest filter hinge point is 20Hz, the highest is 20kHz.

Next push (#14) Bandwidth button. Now turn the (#17) Rotary Dial to select the width of your filter. The first numbers seen 1,2,3,4,5, represent that number over 60. So 2 = 2/60 = 1/30th of an octave. (When in this mode, the LED beside the (1/60) will be on). 

Above 5/60, the unit switches to alpha numeric/decimal operation. For reference .33 = 1/3rd octave. 

The options above 1 full octave are 1.5 octave, after that the settings switch to full octave settings from 2-10 octaves wide.

Choose the filter bandwidth that matches what you need to adjust.
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Finally push the (#10) Gain button. You'll see the LED next to dB light up once you've dialed in any number. Now turn the Rotary Dial to select the amount of cut or boost you need.

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