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Introduction
Thank you for selecting the MOON 810LP Dual-Mono
Phono Preamplifier as a part of your music/cinema
system. This component has been designed to offer
state-of-the-art high-end performance in an elegant
package, while retaining all the sonic hallmarks on
which Simaudio has made its reputation. We have
spared no effort to ensure that it is amongst the finest
phono preamplifiers available. 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 audio
components are so musically satisfying.
The performance of your 810LP will continue to
improve during the first 500 hours of listening. This is
the result of a "break-in" period required for the
numerous
high
quality
throughout this phono preamplifier.
Before setting up your new MOON 810LP, we
encourage you to please read this manual thoroughly to
properly acquaint yourself with its features. We hope
you enjoy listening to the MOON 810LP Phono
Preamplifier 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 810LP Phono Preamplifier incorporates
many significant design features to achieve its "world
class" level of performance. This is an abbreviated list of
the more important features:
The oversized power supply, located within the main chassis,
is housed in an isolated enclosure that is constructed from
satin coated 14-gauge steel to eliminate all traces of AC
6
810LP Evolution
electronic
parts
Series
artifacts. Power supply featuring a "pi-type" filter using
40,000uF of capacitance and dual choke inductance (2x
200mH). The result is a power supply with a noise floor of -
150dB related to 1.0V, DC - 100kHz.
4 stages of our newly developed M-LoVo MOON low voltage
DC regulation circuit; a highly sophisticated circuit made up
of a clever combination of IC's and discrete parts that is
virtually free of noise, yielding an exceptionally fast, precise,
and stable DC voltage. The result is a power supply with a
noise floor of -150dB related to 1.0V, DC - 100kHz.
Power supply voltage regulation includes i
Inductive DC Filtering); 1 inductor for each and every chip (i.e.
OpAmp, etc.) in the audio circuit's signal path – 24 stages in
all.
The dedicated audio circuit board is mounted on a 5-point
used
gel-based floating suspension, derived from our M-Octave
technology, originally developed for the reference MOON
850P Preamplifier.
Adjustable impedance loading - 64 available settings from
12.1Ω to 47kΩ
Adjustable capacitance loading - 16 available settings from
0pF to 1120pF
Adjustable gain settings - 16 available settings from 40dB to
70dB
Selectable equalization curves for both the RIAA and the
IEC standards
Customized parts include metallized polypropylene film
capacitors with very tight tolerances of 1%
Four-layer PCB tracings with dedicated ground and power
planes using pure copper for low impedance characteristics.
The advantages include better circuit layouts resulting in a
much shorter signal path and a vastly improved signal-to-
noise ratio
Optional external power supply.
Ultra rigid chassis construction to minimize the effects of
external vibrations.
The shortest possible signal path for a faster transient
response and the lowest possible noise floor.
2
DCf (Independent
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