Marantz NR1609 Owner's Manual page 227

Contents Connections
DTS sound is not output.
Check that the digital audio output setting on the connected device is set to "DTS".
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Dolby Atmos, Dolby TrueHD, DTS-HD, Dolby Digital Plus audio is not output.
Make HDMI connections. (v p. 55)
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Check the digital audio output setting on the connected device. On some devices, "PCM" is set by default.
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DTS Neural:X mode cannot be selected.
DTS Neural:X cannot be selected when using the headphones.
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Dolby Surround mode cannot be selected.
Dolby Surround cannot be selected when using the headphones.
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Audyssey MultEQ ® , Audyssey Dynamic EQ
These cannot be selected when you have not performed Audyssey
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Switch to a sound mode other than "Direct" or "Pure Direct". (v p. 115)
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These cannot be selected when sound mode is "DTS Virtual:X" or sound mode that have "+Virtual:X" in the sound mode name.
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These cannot be selected when using the headphones.
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"M-DAX" cannot be selected.
Check that an analog signal or PCM signal (Sample Rate = 44.1/48 kHz) is input. For playback of multichannel signals such as Dolby Digital or DTS
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surround, "M-DAX" cannot be used. (v p. 151)
Switch to a sound mode other than "Direct" or "Pure Direct". (v p. 115)
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No sound is output when using ZONE2.
Digital signal audio input from the HDMI connector or digital audio connectors (OPTICAL/COAXIAL) cannot be played back. Use analog connections.
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When listening to audio from a Bluetooth device in ZONE2, remove any obstructions between the Bluetooth device and this unit and use it within a
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range of about 98.4 ft/30 m.
Front panel Display
Playback
® and Audyssey Dynamic Volume
® Setup. (v p. 175)
227
Rear panel
Settings Tips
® cannot be selected.
Remote Index
Appendix