Yamaha PortableGrand DGX-670 Owner's Manual page 79

Advanced Features
Refer to the Reference Manual on the website, Chapter 6.
Making and saving the microphone
settings:
Applying desired Effect to the
microphone sound:
[MIC SETTING] → TAB [R] Setting
[MIC SETTING] → TAB [L] Mixer → [8 UD ] (DSP)
DGX-670 Owner's Manual
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