speaker Volume vs. Gain vs. Equalizer settings

[Rebel_GQ]

New to this so please bear with me...

I've been listening to ultrasonic track (of ASC) on my laptop speakers running Windows 10. I've read several posts stating to use Frequensee to check for proper dB range (Frequensee is not made for Windows 10, but I downloaded a similar program).

The free speaker test offered here did what it should, and I see that my speakers look to be in the 20Hz to 20kHz range. The attached screen shots show the sub operates within the 15kHz to 20kHz, so I think I'm good with having the proper speakers.

My confusion is: I am unclear whether I have the correct Volume setting. Adjusting the Volume or Equalizer has no effect on the attached graphs. (Note, I set my Equalizer to Jazz as it was mentioned Shannon seems to get best results from this setting).

Only adjusting the GAIN moves the dB levels up or down. So my question is: what is the proper Volume, Gain and Equalizer setting I need for optimal ultrasonic listening? See below screen shots for -30dB, 0dB, and 30dB respectively.

[attachment=625][attachment=626][attachment=627]

[Rebel_GQ]

Note, I can only set the Gain from -30dB to +30dB.

I've been using the laptop volume around 70 to 80.

[Havana]

Too much gain could distort the audio. Zero gain on max volume should be more than enough on most laptops. Also I found measuring volume with microphone can be misleading, i used two smartphones side by side and the difference in Frequensee was about 20db. I go by what feels comfortable to me (if you can hear the ultrasonic).

[Benjamin]

I'm not sure about gain or equalizer. Safer to have them off.

As for volume, it's simple to set. If you're using ultrasonic then set the volume with a masked version first, have it at a comfortable volume from where you're listening, then you can play ultrasonic at that volume. Doesn't have to be anything fancy.