There are equalizer settings here: level and on/off duration.

And there is a separate tab for a thorough equalizer setup:

You select the main audio device here:

And the signal source, too:

And that’s exactly where we’ve got a problem. The equalizer refused to work when the audio signal was where it is normally supposed to be ?on the line output. The microphone and line inputs work all right, but the most demanded mode ?using the equalizer when playing music ?is unavailable. There is just no such mode here. Of course, it’s not a problem to connect the line input and output, but we can’t understand the developer’s reasoning. Checking the option “Show Graphical EQ for all system sound?did not help, either:

We can think of only two explanations: this software either works wrongly with the integrated audio subsystem of our Intel D955XBK mainboard or the equalizer is only supposed to appear when the user tries to sing a tune into the microphone or record something from the line input. The following picture was the maximum we could see of the equalizer: