Pioneer SC-LX904 Instruction Manual page 147

Contents Connections Playback Setup
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(*1) A center speaker or surround speakers need to be installed.
(*2) If the input source is Blu-ray Disc and the speaker layout is 5.1ch or less, DD+ cannot be selected. Instead, the listening mode for DD can be selected.
(*3) The listening mode displayed depends on the speaker layout ( p139, 140). Furthermore, when the setting for "Speaker Virtualizer" ( p163) is "Off" (default
value is On), then modes other than Atmos and Dsur cannot be selected.
(*4) Surround back speakers need to be installed. Can be selected when the input format is 5.1 ch.
(*5) If the input format is any of the following and the channel count is monaural, this listening mode becomes unavailable.
– DTS, DTS 96/24, DTS Express, DTS-HD HR, DTS-HD MSTR, PCM, music file
(*6) Cannot be selected when the IMAX Mode ( p164) is set to "Off" (the default value is Auto).
(*7) Cannot be selected when the input format is monaural.
(*8) Surround speakers or height speakers need to be installed.
(*9) A center speaker, surround speakers, or height speakers need to be installed.
(*10) Cannot be selected if "Speaker Virtualizer" ( p163) is set to "Off".
(*11) Surround speakers need to be installed.
(*12) You cannot select any mode other than Pure Direct, Stereo, Ext.Stereo and Ext.Mono if the sampling rate is 5.6/11.2 MHz.
(*13) This can only be selected when no surround back speaker is connected.
(*14) Can only be selected when the IMAX Mode ( p164) is set to "Off" (the default value is Auto).
‰ Speaker Layouts and Selectable Listening
Modes ( p136)
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Front Panel≫ Rear Panel≫ Remote≫