| 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 to the chassis with our M-Octave Damping system | 
| A dual-mono oversized power supply using 2 toroidal transformers in conjunction with 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 | 
| Power supply voltage regulation includes i²DCf (Independent 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 | 
| Fully differential, no global feedback circuit topology, using absolutely no capacitors anywhere in the audio signal path | 
| M-Lock for “user selectable” maximum volume setting lock-out for each line input | 
| “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 | 
| RS-232 port for (i) full unsolicited bidirectional feedback and (ii) firmware updates | 
| IR input for external control | 
| 12 Volt trigger output for remote operation | 
| SimLink™ controller port for 2-way communications with other compatible MOON components | 
| 4-Layer printed circuit boards 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 | 
| Includes FRM-3 remote control |