Yamaha CLP-525 Owner's Manual - Page 13

Playing the Piano Setting the Volume When you start playing, use the [MASTER VOLUME] knob to adjust the volume of the entire keyboard sound. Level decreases. Level increases. CAUTION Do not use this instrument at a high volume level for a long period of time, or your hearing may be damaged. Intelligent Acoustic Control (IAC) With this function, the sound quality of this instrument is automatically adjusted and controlled according to the overall volume. Even when the volume is low, this lets you hear both low sounds and high sounds clearly. Default setting: On To turn on IAC: While holding down [PIANO/VOICE], press the F♯0 key. To turn off IAC: While holding down [PIANO/VOICE], press the F0 key. Lowest key F♯0 To adjust IAC Depth: While holding down [PIANO/VOICE], press one of the A-1 - D♯0 keys. Lowest key F0 A-1: depth -3 D♯0: depth +3 Lowest key C0: depth 0 (Standard setting) The higher the value, the more clearly that low and high sounds are heard at lower volume levels. Setting range: A-1 (-3) - D♯0 (+3) Default setting: C0 (0) 13 CLP-525 Owner's Manual