You are right there isn't a 2.1 mode.

I set it to 5.1, then on the next screen, unselected center channel, and rear speakers.

Then it asks which speakers are full range. At first I unselected both front and subwoofer.

However it still didn't sound like it was using the sub.

So I went through the configuration again, and selected them both as full range.

It still didn't sound like it was using the sub.

Also, I tried connecting both RCA to the LFE inputs on my sub, as well as connecting only the red one.

It still didn't sound like it was using the sub.

I can hear the dialog and music, it just doesn't seem to be using the sub.

BTW, I am now on a PB-2000 Pro.

I tried playing content that was in 5.1. I still barely hear my subwoofer when its connected to my PC.


Also, to clarify, whether I'm playing 5.1 content or regular music, I do feel my subwoofer moving when it's connected to my PC. It just barely produces sound.


I can verify that I am playing the 5.1 content correctly, because if I change my audio output device to my receiver (and connect the subwoofer to my receiver, instead of my PC), then the subwoofer sounds like it should.


I do think the fact that my Airmotiv 6s volume is set at 6/100 or 8/100, through my device speakers in windows settings, and yet that is still loud enough to fill the room, might have something to do with it.

Maybe if I were to increase that volume, then I'd also hear more sub.

However, I can't realistically do that, because a 10/100 or 12/100 is too loud, from my Airmotiv 6s.

The other thing that contradicts this, is that when I play the test tones, then the subwoofer sounds loud.

So that might mean that I don't really need to change the master volume.

You have to pass the audio to your speakers through the sub or if your speakers have rca out you use that to your sub.

3.5mm - > sub input - > sub output - > power speaker.

Or if your speakers have sub or rca output..

3.5mm - > power speakers - > speaker output -> sub input.

I connect my edifier speaker like this but i use fiber toslink to speakers then speaker sub output to sub with 3.5mm to rca.

Its better to pass audio through speakers first though. I don't know what type of speakers you have but mine have bluetooth and aux input x2. If you go through the sub first then the sub will only work with your pc only. If you go to speakers first then speakers to sub the sub will work with all audio sources.