2004 Toyota Prius Owners Manual - Page 173

26p140a How good an audio program sounds to you is largely determined by the mix of the treble, mid−range, and bass levels. In fact, different kinds of music and vocal programs usually sound better with different mixes of treble, mid−range, and bass. A good balance of the left and right stereo channels and of the front and rear sound levels is also important. Keep in mind that if you are listening to a stereo recording or broadcast, changing the right/left balance will increase the volume of one group of sounds while decreasing the volume of another. TONE AND BALANCE Touching the "SOUND" switch on the screen displays the sound adjustment screen. BASS "+" or "-": Adjusts low−pitched tones. MID "+" or "-" (Type 2 only): Adjusts mid−pitched tones. TREB "+" or "-": Adjusts high−pitched tones. "FRONT" or "REAR": Adjusts sound balance between the front and rear speakers. "L" or "R": Adjusts sound balance between the left and right speakers. "OK": The previous screen returns. 161