Introduction; About The M15 Hd; E .A .R .S . And Digital Surround; Ease Of Use - NAD M15 HD Owner's Manual

Though the M15 HD is among the most technically sophisticated
AV Surround Sound Preamplifier, we worked hard to make it one of the
most musically transparent home-theater components available as well;
this is what we mean by NAD's "Music First" design philosophy. Here are just
few examples:
• High-performance components used throughout the M15 HD's analog
audio circuits maximize quality from all sources, including multi-channel
analog sources such as DVD-Audio and SACD.
• Audio pre-out jacks make potential expansion as flexible as possible..
• Zone pre-amp and video feed with assignable 12 V DC trigger control.
• An RS-232 port for advanced zone control and software update through
a Windows® compatible PC.
• Gold-surfaced connectors are employed throughout to ensure
maximum signal integrity.

E .A .R .S . AND DIGITAL SURROUND

A key element of the M15 HD's unique musical aptitude is NAD's proprietary
Enhanced Ambience Recovery System (EARS). In sharp contrast to many
"ambience-synthesis" music-surround modes, EARS exploits the M15 HD's
substantial DSP power to route the ambient content that is "encrypted" in
virtually all natural-acoustic recordings to the appropriate main, center and
surround speakers, without resorting to artificially generated reflections
or regeneration. EARS' natural ambience yields a subtle but exceptionally
effective surround mode that naturally enhances the spatial presentation in
a fashion suitable for serious music listening.
Dolby Pro Logic IIx Music and DTS Neo: 6 Music modes can also create
enjoyable experience from 2-channel sources.
On the digital side, the M15 HD combines extraordinarily high-speed DSP
processing employing one of the most advanced high-speed DSP "engines"
available, with fully 24-bit, 192 kHz-sampling-capable D/A converters for
all channels. A single, high-precision master clock synchronizes all digital
circuits to eliminate the timing errors ("jitter") that otherwise compromise
sonics. The result is legitimately state-of-the-art surround decoding from
Dolby Digital and DTS sources, and 6.1/7.1-channel reproduction, with
genuinely superior sound quality in all modes.

EASE OF USE

Despite the effort NAD has invested in the M15 HD's sonic performance, we
expended no less in making it powerfully easy to use. Its design is uniquely
simple for so sophisticated a component, and the HTRM universal remote
control is equally understandable, as are the M15 HD's own front-panel
and on-screen displays. Its simple yet powerful system of "presets" permits
you to fine-tune your listening setup for different conditions, sources, or
listeners, and to recall these multiple parameters with a single key press.

INTEGRATION

The M15 HD offers extensive, flexible system-integration options through
its configurable DC trigger outputs and input, and its standard-protocol IR
communications links. The DC trigger outputs can be assigned to either
Local and/or Zone locations.

ZONE

The M15 HD is equipped with three configurable Zones that make full
use of video and pre-amp level audio outputs. The ZR 5 remote control
will allow you complete access to Zone 2 applications including access
to volume On/Off and all sources inputs. Zone 3 and Zone 4 could be
configured and managed at the appropriate Zone OSD menu using the
corresponding keys on the HTRM remote control.
RS 232
Flexible system configuration is possible with the RS-232 interface and
NAD's proprietary Windows® compatible software. We are also certified
partners with AMX and Crestron and fully support these external devices.
This interface allows complete remote control of the M15 HD from any
remote location via the PC. Complete remote control functionality is
available to the user by interface software. See your NAD audio specialist for
further information.

UPGRADABILITY

The M15 HD permits flexible system growth via individually accessible
pre-out and main-in jacks for all channels. We have made the more likely
scenario of software upgrades easy to accomplish via the high speed
RS-232 port on the rear panel of the M15 HD. Owners who register their
M15 HD on our international web site www.NADelectronics.com will be
advised of updates. Some of these may be free of charge, and some may
require royalty payments depending on the type of upgrade. The advanced
user will be able to perform these upgrades by downloading files from our
web site, via e-mail and installing them by connecting the M15 HD to a PC.
Alternatively the dealer from whom you purchased your M15 HD should be
able to assist in performing these upgrades.

ABOUT THE HTRM SYSTEM REMOTE CONTROL

Packed with your M15 HD is the NAD HTRM remote control, a full-system
remote especially designed for easy use and understanding. Be sure to
read the section "Using the HTRM Remote Control", to familiarize yourself
with the remote's layout and operations before proceeding to setup your
M15 HD. You may opt to use your HTRM as your primary way to command
your entire A-V system. The HTRM can be employed to operate additional
NAD or other-brand components such as a DVD/CD player, television,
satellite/HDTV tuner, VCR, or virtually anything else that operates via
standard infrared remote.

INTRODUCTION

ABOUT THE M15 HD
5