Yamaha 640 Owner's Manual - Page 59

Digital Effects Master EQ (PSR-740) Usually an equalizer is used to correct the sound output from amps or speakers to match the special character of the room. The sound is divided into several frequency bands, then by raising or lowering the level for each band, the correction is made. Adjusting the sound you play according to the genre-classical music being more refined, pops music more crisp, and rock music more dynamic-can also serve to draw out the special characteristics of the music and make your performance more enjoyable. The PSR-740 possesses a high grade five-band digital equalizer function. With this function, a final effect-tone control-can be added to the output of your instrument. Frequency Bands (5 bands) LowGain LowMidGain MidGain HighMidGain HighGain The digital equalizer adjusts the gain (amplitude change) in each of the five frequency bands within a range of -12 to 0 to +12 decibels [dB]. The PSR-740 has five separate preset Master EQ settings (below) for instantly configuring the equalization for a variety of different music styles. +12 01 Standard 0 -12 +3 LowGain 0 LowMidGain -1 MidGain 0 HighMidGain +5 HighGain • The range of each frequency band can be changed by transmitting the system exclusive message from an external MIDI device to the PSR-740/640 (see page 163). 02 Disco +12 0 -12 +7 LowGain -2 LowMidGain -1 MidGain +2 HighMidGain +7 HighGain 03 Mild +12 0 -12 +2 LowGain +2 LowMidGain -2 MidGain -5 HighMidGain 0 HighGain 04 Bright +12 0 -12 +7 LowGain -2 LowMidGain 0 MidGain +2 HighMidGain +7 HighGain 05 Lo Fi +12 0 -12 -12 LowGain -3 LowMidGain +10 MidGain -2 HighMidGain -10 HighGain The equalizer can be set in two ways: q Selecting one of the five presets page 60 q Adjusting the five bands manually page 61 59 57