NAD L 73 Dolby Headphone, Adjusting Surround Modes, Dolby PRO Logic II Plii, DTS Delay Time

Operation

ABOUT THE L73’S SURROUND MODES

DOLBY® HEADPHONE

Dolby Headphone technology, compatible with any pair of conventional headphones, accurately simulates the experience of hearing a 5.1-channel speaker system properly set up in a listening room, minus the annoying “listener fatigue” effect that plagues other headphone-based virtual surround sound offerings. Dolby Headphone technology is ideal for private playback of multi-channel entertainment without disturbing others nearby.

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

DH1 is a small, well-damped room appropriate for both movies and music-only recordings. This decoding process is known as the Dolby Headphone “Reference Room”

DH2 is a more acoustically live room suited to music listening, but also great for movies. DH3 is a larger room, more like a concert hall or movie theatre.

ADJUSTING SURROUND MODES

Use the HTR L73 remote’s “Surr. Mode” key, or the front panel SURROUND MODE key, to select the SURROUND MODE you wish to display and listen to; this will display on the L73’s VFL Display. One can also

select variations using the HTR L73 cursor keys on the <SURROUND:> line of the OSD. Use the

HTR L73’s and cursor keys to navigate among and modify that mode’s adjustable parameters (if any).

NOTE

SURROUND MODE parameter changes are not maintained when you change SURROUND MODEs.

DOLBY PRO LOGIC II (PLII)

PLII MOVIE is optimised for film soundtracks.

PLII MUSIC for music recordings.

PLII EMULATION for decoding original Dolby Surround sound film and music recordings.

DELAY TIME

SURRound (0 to 15 mS for PLII Music, 10 mS for PLII Movie and Emulation): Adjusts front-rear emphasis of the surround effect independently from the relative channel levels.

DTS

DELAY TIME

CENTER (0 to 5 mS): Adjusts centre-front emphasis of the centre channel such as vocals, independently from the relative channel levels.

SURRound (0 to 15 mS): Adjusts front-rear emphasis of the surround effect independently from the relative channel levels.

DOLBY DIGITAL

DELAY TIME

CENTER (0 to 5 mS): Adjusts centre-front emphasis of the centre channel such as vocals, independently from the relative channel levels.

SURRound (0 to 15 mS): Adjusts front-rear emphasis of the surround effect independently from the relative channel levels.

NIGHT-M (On or Off): Adjusts the dynamic range.

STEREO

No Delay

ENHANCED STEREO / EARS

DELAY TIME

SURRound (0 to 15 mS): Adjusts front-rear emphasis of the surround effect independently from the relative channel levels.

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