NAD L 73 Dolby Digital / DTS, Selecting Surround Modes, Dolby Virtual Speaker and Headphone

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Operation

ABOUT THE L73’S SURROUND MODES

DOLBY DIGITAL / DTS

Digital recordings in Dolby Digital or DTS formats are reproduced via the channels employed in the original recording (up to the maximum channels present in the current <SPEAKER SETTINGS> setup).

NOTE

•The DVD player must be sending a Dolby Digital or DTS bit-stream from its digital output. The DVD includes its own setup menu that (among other things) lets you select the default bit-stream format, and includes an “Auto” setting that directs the player to choose the Dolby Digital/DTS signal whenever these are available. In a few cases, you may have to set the player’s bit-stream manually to “DOLBY DIGITAL: ON”. In the case of DVDs that carry both Dolby Digital and DTS, you will select one or the other from the disc’s (not the player’s) main menu.

•While most Dolby Digital recordings are 5.1-channel surround productions, older examples may be multichannel, 2-channel, or even monaural; the L73 will automatically reproduce the Dolby Digital signal with the maximum number of channels available.

The table below indicates which SURROUND MODEs are available with the two types of audio signal sources: digital- or analog-input 2-channel (whether the actual signal is monaural, stereo or surround- encoded), and digital-multichannel (Dolby Digital or DTS). Where a SURROUND MODE is not available to a given signal source, it will not appear in the <LISTENING MODE> selection rotation.

2-ch analog or PCM	Multi-ch. (DD/DTS)
Stereo	Downmix
EARS	—
—	Dolby Digital or DTS
Dolby Pro Logic II Music	—
Dolby Pro logic II Movie
Dolby Pro logic Emulation	—
Enhanced Stereo

SELECTING SURROUND MODES

Keying the HTR L73 remote’s “SURR MODE” button steps through each of the L73’s SURROUND MODEs available to the current input signal. It also momentarily displays the SURROUND MODE in the OSD.

NOTE

Changing the type of input signal may automatically change the SURROUND MODE: If the new signal is a Dolby Digital or DTS recording, it will automatically invoke its native mode. The reverse is also true if Dolby Digital or DTS was previously selected.

DOLBY VIRTUAL SPEAKER AND HEADPHONE

DOLBY® VIRTUAL SPEAKER

Dolby Virtual Speaker technology creates a highly compelling 5.1-channel listening experience from as few as two speakers, making it an ideal entertainment solution for locations where space for multiple- speaker setups is limited.

Dolby Virtual Speaker models the sound of a playback system into two different listening environments, based on acoustic measurements of real rooms:

DVS REFERENCE is a small, well-damped room appropriate for both movies and music-only recordings.

DVS WIDE is a larger room, more like a concert hall or movie theatre.

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