Moon by Simaudio 850P - Preamplifier.
Key Features:
- 2-chassis design with 1 chassis housing the power supply, digital controller circuitry, software processing & the LED display. The other chassis contains ONLY audio circuitry;
- Power supply voltage regulation includes i 2 DCf (Independent Inductive DC Filtering); 1 inductor for each and every IC in the audio circuit’s signal path – 40 stages in all;
- Gain offset adjustment of ±10dB for each line input;
- Each line input is fully configurable to be “home theater ready”, whereby the 850P’s volume control is bypassed.
The ultimate analog preamplifier
MOON 850P Dual-Mono preamplifier as a part of your music/cinema system. This preamplifier 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 the finest two-channel preamplifier 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 preamplifiers are so musically satisfying.
Our proprietary M-Octave Damping system that virtually eliminates the sonically degrading “microphonic effect” by mounting the main audio circuit board on an 8-point floating suspension.
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.
An oversized dual-mono power supply features 6 stages of DC voltage regulation and choke filtering.
SimLinkTM controller port allows for 2-way communications between other compatible MOON Evolution Series components.
M-Ray volume control circuit based on the R-2R resistor array configuration that uses thin film surface mount resistors with 0.1% tolerances, resulting in no sonic degradation of the audio signal regardless of the selected volume setting.
In the Box:
- Preamplifier;
- Remote Control;
- Power Cord;
- User manual.

















































