Simaudio 820S Power Supply - Manual (Page 6)

820S Power Supply
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6
Introduction
Thank you for selecting the MOON 820S power
supply as a part of your hi-fi reproduction system.
This power supply has been designed to upgrade
the “already state-of-the-art of performance” of any
one, or any combination of two of the following
MOON Evolution products simultaneously: 740P
Preamplifier, 650D and 750D DAC/CD Transports,
610LP and 810LP Phono Preamplifiers.
We have been building high-performance audio
equipment for over 30 years, and the know-how
gained through our cumulative experience is an
important reason why MOON products are so
musically satisfying.
Before setting up your new MOON 820S, we
encourage you to please read this manual
thoroughly to properly acquaint yourself with its
features. We hope you enjoy using the MOON
820S power supply as much as the pride we have
taken in creating this fine audio product. We
understand the power and emotion of music and
build our products with the goal of faithfully
capturing these elusive qualities.
The information contained in this manual is subject
to change without notice. The most current version
of this manual is available on our official website at
http://www.simaudio.com
Your MOON 820S Power Supply incorporates many significant design features to achieve its “world-class” level
of performance. This is an abbreviated list of the more important features:
Two custom proprietary toroidal transformers with
lower magnetic, electrical and thermal loss,
yielding an improved power transfer and lower regulation
factor. The result is increased current speed
and better dynamics; One each for analog and digital
power supplies.
Special "pi-type" filters – 2 for each for analog &
digital supplies - after the inital voltage rectification stage
that reduce AC transmission noise, using 40,000uF of
capacitance and dual choke inductance (2x 20mH).
The analog and digital supplies each have four stages of
our
M-R2S circuit; A fully discrete voltage
regulation circuit using a "precision reference" feeding an
amplifier comprised of numerous IC's and transistors, as
opposed to a single voltage regulation chip. M-R2S
outputs pure DC power that is exceptionally fast, very
precise, has a virtually unmeasureable noise level, as well
as absolute stable voltage.
4-Layer printed circuit boards with pure copper
tracings and extremely low impedance characteristics
yielding much shorter signal paths and drastically reduced
noise levels.
Ultra rigid chassis construction to minimize the effects
of external vibrations.
Designed to be powered up at all times for optimal
performance.