Ultra-clear Sound, Including Dialogue Pioneer's tradition of high sound quality, from deeply powerful bass to clear and sharp highs, is used to full advantage in these TVs. Movie dialogue, even when whispered, as well as the wide range of other delicate sounds, are always heard clearly. The power, tension, presence, and rhythmic feel of movies and concerts are faithfully reproduced to add greater excitement to the high resolution images. 　Optimise the Sound to Match the Content You can set and memorise parameters for optimum sound quality with various picture modes, such as Movie mode and Director mode. Each sound effect can be varied through four steps. You also get AVC (Auto Volume Control) that maintains the volume at a constant level even when the source volume varies (so you are not bothered by loud commercials).