Onkyo TX-NR 838

Multichannel
This mode is for use with PCM multichannel sources. The audio from the
input source is output as-is, without surround sound processing.
Input source: 5.1 ch, 7.1 ch
Speaker configuration: 3.1 ch, 5.1 ch, 7.1 ch
Orchestra
Suitable for classical or operatic music, This mode emphasizes the surround
channels in order to widen the stereo image, and simulates the natural
reverberation of a large hall.
Input source: MONO, STEREO, 5.1 ch, 7.1 ch
Speaker configuration: 5.1 ch, 7.1 ch
PLIIz Height (Dolby Pro Logic IIz Height)
This mode allows you to effectively use the existing programs when height
speakers are connected. It is suitable for various kinds of sources including
movie, music and especially games.
Input source: STEREO, 5.1 ch, 7.1 ch
Speaker configuration: 7.1 ch height
Pure Audio
This mode reproduces the original sound accurately. Since the audio from
the input source is output without surround sound processing and the display
and video circuitry are turned off, possible noise sources are minimized for a
realistic audio reproduction.
Input source: MONO, STEREO, 5.1 ch, 7.1 ch
Speaker configuration: 2.1 ch, 3.1 ch, 5.1 ch, 7.1 ch
This mode cannot be selected when Zone 2/Zone 3 is active. Activating
Zone 2/Zone 3 when this mode is selected, automatically switches the
listening mode to Direct.
Stereo
In this mode, sound is output from the front left and right
speakers/subwoofer.
Input source: MONO, STEREO, 5.1 ch, 7.1 ch
Speaker configuration: 2.1 ch, 3.1 ch, 5.1 ch, 7.1 ch
Studio-Mix
Suitable for rock or pop music, Listening to music in this mode creates a