The "S1 Series" that appeared in 1993 was a reference-class audio series designed to please the most discerning of all audiophiles. The primary
objective of the S1 Series was to reproduce "reality"---- a deeper, more natural sound.
Continuing the same quest for high-quality sound reproduction that the S1 Series had been pursuing, the DCD-SA1 combines the latest audio
technologies with the reliability that DENON's CD players have earned over the past 10 years. From the external design to the details on the
inside, the DCD-SA1 has been developed as a member of the new SA Series embodying the essence of DENON's advanced audio technologies.
With new advances in audio formats and the ability now of many households to enjoy multi-channel sound in their own home theatres, "authentic
sound" is in even greater demand. The SA Series represents DENON's latest offering of possibilities in pure 2-channel audio for today's most
dedicated music lovers.
Meticulously designed circuitry, drive mechanism, construction
reflect the best of DENON's technology and experience.
DCD
-
SA1
CD / SUPER AUDIO CD PLAYER
10
'Advanced AL24 Processing,'
the latest technology for
high sound quality
The DCD-SA1 employs Advanced AL24
Processing, the ultimate analog waveform repro-
duction technology developed by DENON, for use
during PCM signal input (during stereo signal
processing). In addition to the data expansion of
existing AL24 Processing Plus technology, up-
converted sampling is used to achieve natural
interpolation without losing original data. Greater
optimisation in digital processing algorithm has
also been achieved for ringing-free pulse response
and for pulsive music data and attack sounds.
This enhances naturalness in the reproduction
of spatial information such as the delicate
nuances in the music, the
locations of the performers,
and the breadth, height, and
depth of the concert hall.
Original Drive Mechanism,
the heart of DENON's digital disc
playback technology
DENON has been developing original drive
mechanisms for a large number of digital disc play-
ers from CD players to universal DVD players. In
addition, the control firmware (for the signal proces-
sor and loader drive circuit) to operate these mecha-
nisms was also developed by DENON. These tech-
nologies as well as DENON's track record of sup-
plying mechanism engines to other manufac-
turers have earned high marks.
Since Super Audio CDs rotate at high speed
during playback, the length of the motor shaft has
been considerably shortened. A long-life brushless
motor capable of withstanding vibration caused by
high-speed rotation has also been used. In
addition, thorough consideration has been given
to mechanical deviations in the optical axis of
the laser beam being irradiated by the pickup onto
the disc, mechanical unevenness in the base of the
pickup mechanism, and the mechanical inclination
of the brushless motor shaft.
The DCD-SA1's mechanism uses a vibration-
resistant coating that was used in the highly-
acclaimed SVH loader. In addition to an optimum
mechanism base floating design, the DCD-SA1
features a thorough hybrid vibration-resistant con-
struction based on vibration analyses in order to sup-
press the resonance of components caused by disc
rotation.
High-accuracy master clock oscillator,
to suppress jitter and noise
The importance of a master clock has been
growing with the spread of high-grade, high-sam-
pling audio sources such as Super Audio CD and
DVD-Audio and advances in high sampling and sig-
nal processing during CD playback. The DCD-
SA1 employs an oscillator with high accuracy and
high stability. Extremely stable oscillation output has
been achieved by modularising the oscillator's circuit
blocks and suppressing influences such as load
capacity from PC boards and other areas compared
to general crystal oscillators. The pattern wiring on
the clock PC board has been designed to ensure
high signal transfer efficiency with negligible loss,
and the clock accurately controls how signals are
sent to each IC. In particular, the physical dis-
Main Features
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