This section uses playback from a CD as an example.
The “CD” input indicator lights.
Playback in source direct mode
The signal does not pass through the tone adjustment circuitry (BASS, TREBLE and BALANCE), resulting in playback of a higher sound quality.
The SOURCE DIRECT indicator lights.
Playback in LOUDNESS mode
When music is played at a low volume level, the effect of the bass and treble cannot be heard easily. The LOUDNESS function corrects the bass and treble in these situations, allowing you to enjoy natural-sounding playback.
The LOUDNESS indicator lights.