Sony DH840 User Manual

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Theater type (default setting) mixes 
reflection and reverberation sound 
creating the characteristics of a mastering 
studio. Additionally, this type mixes in 
frequency characteristics that are often 
found in professional studios and movie 
theaters. It is ideal for watching movies in 
a listening room that has less 
reverberation. 

In Studio type, effects are kept to a 
minimum, while still providing a great 
theater experience. This type provides the 
accuracy of the original recording. 

You can use the following parameters to adjust 
the tonal quality (bass/treble level) of front 
speakers.
• Bass
• Treble

This function does not work when “A. DIRECT” is 
being used.

You can also adjust the front speaker bass and treble 
level with TONE MODE and TONE on the receiver 
(page 9).

You can adjust settings for the audio to suit 
your preference.

x A/V Sync (Synchronizes audio 

Lets you delay the output of audio to minimize 
the time gap between audio output and visual 
display.
• ON (Delay time: 60 ms): The audio output 

is delayed so that the time gap between the 
audio output and visual display is 
minimized.

• OFF (Delay time: 0 ms): The audio output 

is not delayed.

• This function is useful when you use a large LCD 

or plasma monitor or a projector.

• This function does not work when “A. DIRECT” is 

being used.

• The delay time may vary depending on audio 

format, sound field, speaker pattern and speaker 
distance settings.

x Dual Mono (Digital broadcast 

Lets you select the language you want when 
you listen to the dual audio of a digital 
broadcast when available. This feature only 
functions for Dolby Digital sources.
• MAIN/SUB: Sound of the main language 

will be output through the front left speaker 
and sound of the sub language will be output 
through the front right speaker 
simultaneously.

• MAIN: Sound of the main language will be 

output.

• SUB: Sound of the sub language will be 

output.

x Night Mode

Lets you retain a theater-like environment at 
low volume levels (page 9).
• ON
• OFF

Level 
(dB)

Bass

Treble

Frequency 
(Hz)