6.7Adjusting Parametric Equalizer Settings

A parametric equalizer is a multi-band variable equalizer that allows control of frequency amplitude (boost/cut), center frequency, and frequency bandwidth, or Q.

The parameter equalizer settings for your device allows you to adjust the Q and gain for seven separate frequencies, which then become plot points on the screen’s graph.

To adjust the parametric equalizer settings for a channel:

Step 1On the appliance Web UI’s main page, select DSP.

Step 2Select the Menu button for the channel.

Step 3From the drop-down menu, select Parametric EQ.

Note: If you want to return to the factory settings, select the Reset icon that appears in the right corner.

Step 4Adjust frequencies as desired, ensuring the Enable LEDs are green for each selected frequency. You can adjust the frequencies by moving the Freq knob or by double-clicking the knob and typing the frequency. When typing the frequency, only numeric values from 20 to 20,000 can be entered.

Step 5Make desired Q adjustments by adjusting knob (or double-clicking and typing the desired adjustment. Q can be from 0.1 to 20 and sets how wide to either side of the selected frequency the adjacent frequencies are affected.

Q is the Quality or Quality Factor which refers to the bandwidth of one band of a parametric equalizer. Q is calculated by dividing the center frequency in Hz by the width of the boost or cut zone +3 dB or -3 dB above or below 0 dB.

Step 6For each frequency, use the Gain knob or double-click the knob and type the gain to either boost (turn up_ or cut (turn down).

Gain knobs can be moved between +12 or -12 dB. By default, each knob is set at 0 dB, which means that no frequencies are being boosted or cut.

Step 7Select Save Settings to Server.