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ABOUT THE SDP-40
Thank you for purchasing the SDP-40 Digital Controller, a reference-
quality, 12-channel audio and video control center with independent
zone monitoring to provide control of input source selection in three
zones at the same time. As flexible as it is powerful, the SDP-40
includes 12 configurable inputs, each of which can be assigned to
its 13 digital audio, 8 analog audio, 5 composite video, 8 S-video,
or 4 component video input connectors. The analog audio input
connectors can be configured for stereo or 5.1-channel sources.
Beyond the standard 5.1-channel analog audio output connectors,
the rear panel includes stereo rear and stereo subwoofer connectors,
as well as stereo auxiliary connectors to provide even more audio
channels. All Main Zone audio output connectors include 24-bit/
96kHz D/A converters operating in dual differential mode. In
addition, the SDP-40 Balanced includes balanced analog audio
output connectors for all Main Zone and Zone 2 channels.
Inside and out, the SDP-40 is designed to remain viable in a future
of emerging technologies. Two RS-232 connectors are provided for
serial control, one to perform flash-memory software upgrades and
configuration downloads and another to support future expansion.
A removable access panel is provided to accommodate new
connectors. Inside, two expansion slots are available for future
hardware upgrades, making it possible to more than quadruple the
SDP-40’s tremendous processing power.
More than just an audio and video control center, the SDP-40
features the latest version of the critically acclaimed LOGIC7®
decoding, which derives 7.1-channel output from stereo, 5.1-, and
6.1-channel sources. Unlike other decoders, LOGIC7 is compatible
with all input sources and requires no special encoding. Because
the improvement it provides is clearly audible, LOGIC7 decoding is
widely regarded as the finest available.
In addition to LOGIC7, the SDP-40 is also equipped with Dolby
Digital Surround EX, Dolby Pro Logic II, Dolby Pro Logic, dts 96/24,
dts NEO:6, dts-ES, THX Ultra2, and THX Surround EX decoding.
THX Ultra2 Certification guarantees that the SDP-40 meets the
highest THX specifications.
With four 32-bit floating-point SHARC™ digital signal processing
(DSP) engines, the SDP-40 offers unparalleled processing power .
These DSP engines perform custom processing such as LOGIC7
decoding, bass enhancement, dialog enhancement, auto azimuth,
5-speaker enhancement, bass management, high-precision digital
crossovers, and audio controls (tone controls). This processing is
available at sample rates up to 96kHz, with 24-bit
resolution to retain top performance from all input sources and
listening modes. A fifth DSP engine is dedicated to decoding multi-
channel compressed audio sources.
High-precision 24-bit/96kHz A/D converters can be used to convert
stereo analog audio input signals to digital signals, allowing the
SDP-40 to provide the benefits of precise digital signal processing
without sacrificing signal integrity. Alternatively, stereo analog signals
can bypass A/D conversion and internal processing, following a
pure signal path directly to the output connectors.
Digital audio input signals are processed through a two-stage
phase lock loop for extremely low intrinsic jitter and high rejection.
Auto azimuth technology corrects timing and level imbalances in
stereo sources, ensuring exceptionally accurate playback of sur-
round-encoded sources. A digital audio pass-through option is
available for recording digital input signals with a CD recorder or a
similar component.