My speakers are only putting out a mono-like sound. Testing reveals the following --
Having drilled down through all the controls, turning down all the sliders in the equalizer still results in some low level of sound, say 2, still bleeding through.
Configuration screen always shows that clicking on one speaker is significantly louder than the other. And left and right sliders control all sound, not only left or right.
Appears not to be a hardware issue, given that all the above work fine when using headphones, and that both speakers, and the subwoofer, are putting out sound, just not at the right levels. The two speakers are not putting out a truly mono signal; that is the effect because only one signal is predominant. In fact, I listened to an old Hendrix song, and it was obvious that only one channel was present. But the software is only controlling the one signal, with the other channel present but significantly lower.