One problem with high-end digital audio outputs is that they are impractical for low-volume usage. If you are trying to watch a film and your volume isn't cranked, hearing the film's dialogue can be incredibly difficult; the words get lost in the soundtrack and effects. To prevent this, Sony incorporated an automated feature that would boost dialogue, however, we've noticed that this feature can increase dialogue beyond favorable levels at times. To ensure that you get pristine audio performance, we recommend keeping this feature set to "Off."