Denon AVR-X6700H - No Sound Is Produced from Subwoofer; DTS Sound Is Not Output; DTS Neural:X Mode Cannot be Selected; Dolby Surround Mode Cannot be Selected

No sound is produced from subwoofer.
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Check the subwoofer connections.
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Turn on the subwoofer’s power.
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Set “Speaker Config.” - “Subwoofer” in the menu to “1 spkr” or “2 spkrs”. (v p. 247)
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When “Speaker Config.” - “Front” in the menu is set to “Large”, depending on the input signal and the sound mode, no sound may be output from the
subwoofer. (v p. 247)
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When no subwoofer audio signal (LFE) is included in the input signals, no sound may be output from the subwoofer. (v p. 256)
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You can make the subwoofer always output sound by setting the “Subwoofer Mode” to “LFE+Main”. (v p. 256)
DTS sound is not output.
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Check that the digital audio output setting on the connected device is set to “DTS”.
Dolby Atmos, Dolby TrueHD, DTS-HD, Dolby Digital Plus audio is not output.
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Make HDMI connections. (v p. 86)
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Check the digital audio output setting on the connected device. On some devices, “PCM” is set by default.
DTS Neural:X mode cannot be selected.
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DTS Neural:X cannot be selected when using the headphones.
Dolby Surround mode cannot be selected.
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Dolby Surround cannot be selected when using the headphones.
IMAX DTS:X cannot be selected.
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IMAX DTS:X and IMAX DTS cannot be selected but DTS:X and DTS can be selected, when the headphones are used.
Sound modes other than “Stereo” or “Direct” cannot be selected.
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Only “Stereo” or “Direct” can be selected for the sound mode if Headphone:X signals are input.
Contents
Connections Playback Settings Tips Appendix
301
Front panel Display Rear panel Remote Index