Moon 850P Preamplifier

MOON 850P PREAMPLIFIER – THE ULTIMATE ANALOG HEART

The MOON 850P is the culmination of decades of experience in analog technology and represents the brand’s most advanced preamplifier to date. It was developed to be completely transparent – a component that disappears from the signal path and leaves only the music in its purest form. Many reviewers have called it one of the most musically revealing products ever made.

HIGHLIGHTS

• Two-chassis design with complete separation of power supply and audio circuitry
• i²DCf (Independent Inductive DC Filtering) with 40 independent stages
• Signal-to-noise ratio of a full 130 dB at full output
• Frequency response from 5 Hz to 100 kHz (±0.1 dB)
• Ultra-low distortion: 0.0005% THD and 0.0001% intermodulation
• 9 dB gain with ±10 dB adjustment per input
• 8 inputs (3 XLR, 5 RCA) and 4 outputs (2 XLR, 2 RCA)

TWO-CHASSIS CONSTRUCTION

The MOON 850P uses a sophisticated two-box design in which the power supply, digital control, and display are isolated in one chassis, while all audio circuitry is placed exclusively in the other. This separation minimizes electrical interference and provides a signal path with extreme precision and purity.

Each integrated circuit in the signal path gets its own dedicated inductor via i²DCf technology, resulting in 40 independent filtering stages. This advanced approach reduces noise to an extraordinarily low level and ensures that music is reproduced with natural warmth and remarkable detail.

SOUND AND PERFORMANCE

The 850P is designed to deliver an uncolored reproduction of the full musical spectrum. With a frequency response from 5 Hz to 100 kHz and a signal-to-noise ratio of 130 dB, the music is presented against a calm, black background where even the smallest details stand out clearly. Distortion is practically inaudible – measured at just 0.0005% THD – making the 850P a true reference in the high-end class.

Gain can be adjusted individually for each input by ±10 dB, allowing the preamplifier to be perfectly matched to different sources. In addition, all inputs can be configured as “home theater ready,” where the 850P’s volume control is bypassed for full integration into a surround system.

DESIGN AND PRACTICALITY

Each of the two enclosures is made from solid aluminum and measures 47.6 cm in width, 10.2 cm in height, and 41.9 cm in depth. The total weight of 67 kg is a testament to its uncompromising construction.

The rear panel offers three balanced XLR inputs, five RCA inputs, as well as dual outputs in both balanced and unbalanced form (fixed and variable). With an output impedance of only 50 ohms, the 850P ensures perfect compatibility with even the most demanding power amplifiers.

The MOON 850P Preamplifier is an uncompromising reference preamplifier, created for audiophiles who want the most transparent and musical reproduction possible. With its unique construction, advanced power filtering, and superior component selection, it delivers a listening experience that ranks among the very best in the world.