NAD L 70 User Manual

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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 CONFIGURATION> 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 L70 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 <SURROUND 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 L70 remote’s “SURR MODE” button steps through each of the L70’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.
ABOUT THE L70’S SURROUND MODES
Operation
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L70 IM english 13/3/05 4:34 pm Page 22

NAD L 70 Specifications

General

Brand	NAD
Model	L 70
Category	Receiver
Language	English

Summary

Introduction

Safety Precautions

Essential safety warnings and notices for the DVD receiver to prevent fire or electric shock.

Getting the Most from the NAD L70

Unpacking, Setup, and Placement

Instructions for unboxing, saving packaging, and choosing a location for the receiver.

L70 Features and Design Philosophy

Overview of the L70's capabilities, design, and NAD's 'Music First' philosophy.

E.A.R.S. and Digital Surround Audio

Explanation of NAD's E.A.R.S. and advanced digital surround processing for enhanced audio.

Ease of Use, Upgradability, and Remote Control

Covers user-friendliness, system growth flexibility, and the HTR L70 remote control.

Quickstart Guide for Initial Setup

Provides initial steps to quickly get the L70 operational and playing a DVD movie.

Identification of Controls

Front Panel Layout and Functions

Detailed description of the L70's front panel buttons, displays, and their functions.

Rear Panel Connections and Ports

Detailed description of the L70's rear panel connections, inputs, and outputs.

Setup Procedures

Initial Setup, Environment, and Displays

Covers initial setup, hum/noise prevention, and understanding display systems.

Navigating OSD, Input, and Speaker Configuration

Configuring OSD, input sources, speaker settings, surround modes, and delay times.

Input Selector Configuration Details

Detailed steps for configuring input sources and linking audio/digital inputs.

Speaker Configuration Parameters

Guide to setting speaker sizes (Small/Large/None) and subwoofer status for optimal sound.

Surround Mode Selection and Adjustment

How to select and adjust different surround sound modes and their parameters.

Level Trim and Test Setup Procedures

Adjusting speaker levels for optimal balance using test tones.

Speaker Delay Time Configuration

Steps to configure speaker delay times for proper sound imaging and ambience.

Operation Guide

Basic Receiver Operation

Covers selecting sources, volume control, muting, and basic receiver functions.

DVD, CD, and Radio Operation

Guide to playing discs and using the AM/FM radio tuner.

DVD Player OSD Navigation and Settings

Navigating DVD OSD, video, audio, and language settings.

Surround Sound Modes and Adjustments

Understanding and adjusting various surround sound modes like EARS, PLII, DTS.

HTR L70 Remote Control Operation

Using the remote for learning codes, macros, and managing libraries.

Reference Information

Troubleshooting Common Issues

Common problems and their solutions for the L70 receiver.

Technical Specifications

Technical specifications for the amplifier, tuner, and physical dimensions of the L70.