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The MOON 850P is
the most advanced MOON preamplifier
to date. Extensive research and
development, coupled with recent
advancements in electronic parts,
have provided us with the foundation
to design what may very well be the
quietest, most accurate and
uncolored preamplifier.
Targeted to the discerning listener
who desires uncompromising musical
reproduction, the 850P features
numerous proprietary technologies
such as our new M-Octave Damping
damping system that eliminates the
sonically degrading effects of
microphonics by mounting the main
audio circuit on an 8-point floating
suspension. The result is a more
natural, liquid and lifelike sound.
Since listening environments are
typically loaded with acoustically
induced vibrations that originate
from the loudspeakers, we use
M-Octave to isolate the MOON 850P
from these microphonic-causing
vibrations, allowing you to hear
more music, exactly the way it was
recorded. Other
in-house technologies include (i)
i²DCf power supply voltage
regulation, (ii) M-Ray volume
control, with a phenomenal 530
steps, allowing for an extremely
precise level adjustment, (iii)
SimLink and (iv) M-Lock, just to
name a few, as well as an RS-232
connection, IR port and 12 Volt
triggers for custom-install
environments. Finally, a plethora of
user selectable cosmetic options are
available at the time of purchase.
Significant Design
Features
- 2-chassis design with one chassis
housing the power supply, digital
controller circuitry and
software processing. The other chassis contains the audio circuitry
- The preamplifier's audio section
is located on its own dedicated
circuit board, which is mounted
with our M-Octave Damping system
- Custom proprietary toroidal
transformer design 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
- A dual-mono oversized power supply
features 6 stages of DC voltage
regulation and extensive
choke filtering
- M-Ray volume control based on the
R-2R resistor array configuration
using metal film surface
mount resistors with 0.1% tolerances, resulting in no sonic degradation
of the audio signal,
regardless of the selected volume setting
- M-Lock for “user selectable”
maximum volume setting lock-out for
each line input
- Power supply voltage regulation
includes i²DCf (Independant
Inductive DC Filtering); There is
one inductor dedicated to each integrated circuit type component (DAC,
Op-Amp, etc.) in the
audio circuit’s signal path - 40 stages in all
- “Gain offset” for each individual
line input with a ±10dB range
- Each line input is fully
configurable to be “home-theater
ready”, where the gain section of
the
850P is bypassed
- 530 individual volume steps in 1dB
and 0.1dB increments
- RS-232 port for (i) full
unsolicited bidirectional feedback
and (ii) firmware updates
- 12 Volt trigger outputs for remote
operation
- IR input for external control
- SimLink controller port for 2-way
communications with other compatible
MOON components
- An exceptionally short signal path
measuring less than 8 inches in
length from the rear panel's
input to output connectors, yielding a much faster transient response
- Fully differential, no global
feedback circuit topology, using
absolutely no capacitors anywhere
in the audio signal path
- 4-Layer PCB’s with pure copper
tracings for a much shorter signal
path; This results in
greater sonic accuracy and a dramatically improved signal-to-noise ratio
- Ultra rigid chassis construction
to minimize the effects of external
vibrations
- Accurate matching of the very
finest quality electronic components
in a symmetrical circuit design
- Improved reliabilty through the
elimination of moving parts
- Includes FRM-3 remote control.
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