Adjusting the tone (Tone)
Adjusts the tonal quality of the sound.
An option menu screen is displayed.
When the input source is “HEOS Music”, an option menu for online music is displayed. Select “Receiver Options...”, then press ENTER.
The “Tone” screen is displayed.
-6 dB – +6 dB (Default : 0 dB)
“Tone” settings are stored for each input source.
This cannot be set when the sound mode is set to “Direct” or “Pure Direct”.
You cannot set this when no audio signal is input or in the menu “HDMI Audio Out” is set to “TV”. link
You can also adjust the tone by turning the BASS and TREBLE knobs on the main unit.