MOON by Simaudio 810LP Phono Preamplifier

Experience the pinnacle of analog mastery with this dual-mono, fully balanced phono preamplifier engineered for discerning audiophiles. Built on a foundation of custom components and meticulous circuit design, it delivers extraordinary sonic clarity while offering remarkable adaptability across diverse vinyl collections. The floating suspension architecture isolates vibration, while the proprietary power supply ensures pristine signal integrity. A landmark achievement in phono pre-amplification that redefines what analog playback can achieve.

"For many years, Simaudio has had a strong desire to offer the very best phono preamp, based on available technologies. We envisioned a design with absolutely no limitations; the ultimate goal was to transport all the emotion of the artist, sound engineer and producer in the recording studio to your living room. With the MOON 810LP we have achieved this and much more. Listen and feel for yourself how the power, emotion and soul of the music will reach you in a way like never before."

The MOON 810LP is a dual-mono fully balanced differential design and is our first phono preamp. It represents a "total attack" on phono pre-amplification due to a combination of custom parts in an ultra-refined audio circuit mounted on a floating suspension and powered by a unique power supply. The highly configurable nature - selectable gain, impedance load, capacitance load and equalizer curves - is achieved with DIP switches on the bottom panel. These switches are directly in line with the circuit at optimal locations to obtain the shortest possible signal path. These adjustments, combined with an excellent overload margin, ensure that the 810LP can work with almost any available phono pattern.

The oversized power supply, located in the main chassis, is housed in an insulated housing made of satin-finished 14-gauge steel to eliminate all traces of AC artifacts. Within this housing is a high quality toroidal transformer, a "pi-type" filter to reduce AC transmission noise and multiple phases of voltage regulation. Finally, on the actual audio circuit, there are 4 stages of M-LoVo - an entirely new, patented MOON low-voltage DC control circuit. By combining all these factors, the MOON 810LP power supply exceeds the performance of a battery power supply in terms of both audio signal-to-noise ratio and voltage control.

• The special audio circuit card is mounted on a 5-point floating gel-based suspension is derived from our M-Octave damping technology, originally developed for the reference MOON 850P preamp
• 4 stages of our newly developed M-LoVo (MOON Low Voltage) DC control circuit; a highly advanced circuit consisting of a smart combination of ICs and discrete parts that is virtually noisy and produces exceptionally fast, accurate and stable DC voltage. The result is a power supply with a noise floor of -150dB related to 1.0V, DC - 100kHz
• Adjustable impedance load - 64 available settings from 12.1Ω to 47kΩ
• Adjustable capacity load - 16 available settings from 0pF to 1120pF
• Adjustable gain - 16 available settings from 40dB to 70dB
• Selectable equalization curves for both the RIAA and IEC standards
• Power supply voltage control contains i²DCf (independent inductive DC filtering); there is one inductor for each component of the integrated circuit type (DAC, Op-Amp, etc.) in the signal path of the audio signal circuit audio signal path - a total of 24 stages.
• Customized parts include metallized polypropylene film capacitors with very close tolerances of 1%.
• 4-Layer PCBs with pure copper tracings for a much shorter signal path; This results in greater sonic accuracy and dramatically improved signal-to-noise ratio
• Power supply with a "pi-type" filter consisting of 40,000uF of capacity and double choke inductance (2x 200mH)
• 12 Volt trigger input and output for remote control
• Extremely rigid chassis construction to minimize the effects of external vibration
• Accurate tuning of the very best electronic components in a symmetrical circuit design.
• Made in Canada

• Inputs (XLR / RCA) 1 pair / 1 pair
• S/N Ratio (full scale @40dB gain) 115dBr
• S/N Ratio (full scale @70dB gain) 95dBr
• IEC Curve Effect -7dB @ 10Hz
• Frequency response 20Hz - 20kHz ±0.1dB
• Crosstalk @ 1kHz -106dB
• Output impedance 50Ω
• THD (20Hz - 20kHz) 0.0008%
• Intermodulation distortion 0.001%
• Input overload @40dB gain (XLR / RCA) 200mV RMS / 100mV RMS
• Input overload @70dB gain (XLR / RCA) 5mV RMS / 2.5mV RMS
• Shipping weight 40 lb / 18 kg
• Dimensions (width x height x depth) 18.75 x 4.0 x 16.8 in / 47,6 x 10,2 x 42,7 cm

• Manual

• "Over time the soundstage got even deeper and incredibly wide, with the unerring ability to clearly place and delineate individual musicians within a fully fleshed-out acoustic." – Graham Abbott, SoundStage! Ultra
• "In terms of black backgrounds, top-to-bottom transient response, image definition, dynamic contrasts at both ends of the scale, and rhythm’n’pacing, the MOON 810LP was worth its considerable price. It was a model of rhythmic and spatial organization." – Michael Fremer, Stereophile