JBL SYNTHESIS SDP-40HD - Manual (Page 106)

Audio Controls JBL
4-6
LOUDNESS ON, OFF
Controls the amount of low-frequency boost that is automatically
applied to the Main Zone audio output connectors labeled Front
L/R, Center, LFE, and Subwoofer L/R. When ON is selected,
loudness compensation is automatically applied based on volume
level. As volume level increases, the amount of low-frequency boost
automatically decreases. The loudness contour is optimized for
input sources calibrated to THX reference levels. When OFF is
selected, no loudness compensation is applied.
The graph shown at the right indicates the frequency response that
is automatically applied when the LOUDNESS parameter is set to
ON and Main Zone volume level is adjusted.
To control the loudness from the remote control:
Press the Shift button:
• Press the TV button to turn the LOUDNESS on.
• Press the SAT button to turn the LOUDNESS off.
The LOUDNESS parameter controls the amount of low-frequency boost that is
automatically applied to the Main Zone audio output connectors labeled Front
L/R, Center, LFE, and Subwoofer L/R.
LOUDNESS
AUDIO CONTROLS LOUDNESS