A feature that is found on some higher-end processors is an independent equalizer for the left and right speakers.
Glitch that caused the sound effects occurring in the left speaker when in Stage Play menu to be missing at times is corrected.
If you are sitting nearest the back left speaker, it will probably be turned down, while the front right speaker may be brought up.
When somebody on the left side of the screen says something, you hear it more from the left speaker.
Some listeners may even choose to disable the left or right speaker of one or more systems.
The left speaker pronounces the consonants, and the right pronounces the vowels.
For a good stereo image, listeners should be roughly the same distance from the left and right speakers.
The left speaker suddenly begins to produce a sharp pure tone.
The mid center point in quadraphonic does only appear in the left speaker.
At a width of 0.04" a relay operated connecting left and right speakers in parallel with the normal center speaker.