"For many years Simaudio has had a strong desire to offer the very finest phono preamplifier, based on available technologies.
We envisioned a design with absolutely no restrictions; the ultimate goal being to transport all of the emotion from the artist,
sound engineer and producer in the recording studio to your living room. With the MOON 810LP we have accomplished this
and much more. Listen and feel for yourself how the power, the emotion and the soul of the music will reach you in ways like never before."
Jean Poulin, CEO Simaudio Ltd.
A dual-mono fully balanced differential design, the MOON 810LP is our first Evolution Series phono preamplifier. Representing an
"all out assault" on phono preamplification resulting from a combination of customized parts in an ultra-refined audio circuit which is mounted on
a floating suspension and fed by a unique power supply. Its highly configurable nature - selectable gain, impedance loading, capacitance loading
and equalization curves - is accomplished using DIP switches located on the bottom panel. These switches are located directly in line with the
circuit at optimal locations to yield the shortest possible signal path. These adjustments, in conjunction with an excellent overload margin,
allow the MOON 810LP to work with virtually any available phono cartridge.
The oversized power supply, located within the main chassis, is housed in an isolated enclosure that is constructed from satin coated 14-gauge
steel to eliminate all traces of AC artifacts. Within this enclosure is a high quality toroidal transformer, a "pi-type" filter to reduce AC transmission
noise and multiple stages of voltage regulation. Finally, on the actual audio circuit, there are 4 stages of M-LoVo - an all new proprietary MOON low
voltage DC regulation circuit. Combining all of these factors, the MOON 810LP's power supply exceeds the performance of a battery
power supply with respect to both audio signal-to-noise ratio and voltage regulation.
810LP Photo Gallery
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| Available gain settings - 810LP bottom panel |
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| Available resistance loading settings - 810LP bottom panel |
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| Available capacitance loading settings - 810LP bottom panel |
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| Inside view of the 810LP |
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| Rear view of the 810LP |
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| Wire-Frame view of the 810LP |
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810LP Technical Features · The dedicated audio circuit board is mounted on a 5-point gel-based floating suspension which is derived from our M-Octave Damping technology, originally developed for the reference 850P Preamplifier · 4 stages of our M-LoVo (MOON Low Voltage) DC regulation circuit; a highly sophisticated circuit that is virtually free of noise, yielding an exceptionally fast, precise, and stable DC voltage. The result is a power supply with a virtually unmeasureable noise floor · 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; 24 stages in all · Selectable equalization curves for both the RIAA and the IEC standards · Customized parts include metallized polypropylene film capacitors with very tight tolerances of 1% · 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 · Power supply featuring a "pi-type" filter comprised of 40,000uF of capacitance and dual choke inductance · 12 Volt trigger input and output for remote operation · 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. |
| 810LP Detailed Specifications | |
| Type | Solid State |
| Configuration | Fully balanced, dual-mono |
| Power Supply Transformer | 25VA |
| Power Supply Capacitance | 40,000µF |
| Balanced Inputs (XLR) | 1 pair |
| Single Ended Inputs (RCA) | 1 pair |
| Input Impedance - Adjustable | 64 settings from 12.1Ω to 47KΩ |
| Input Capacitance - Adjustable | 16 settings from 0 to 470 pF |
| Gain - Adjustable | 16 settings from 40dB to 70dB |
| Balanced Output (XLR) | 1 pair |
| Single-ended Output (RCA) | 1 pair |
| Input overload @ 40dB gain | 200mV RMS (XLR) / 100mV RMS (RCA) |
| Input overload @ 55.5dB gain | 30mV RMS (XLR) / 15mV RMS (RCA) |
| Input overload @ 60dB gain | 20mV RMS (XLR) / 10mV RMS (RCA) |
| Input overload @ 65dB gain | 10mV RMS (XLR) / 5mV RMS (RCA) |
| Input overload @ 70dB gain | 5mV RMS (XLR) / 2.5mV RMS (RCA) |
| Signal-to-noise Ratio (fs @ 40dB gain) | 115dBr |
| Signal-to-noise Ratio (fs @ 55.5dB gain) | 108dBr |
| Signal-to-noise Ratio (fs @ 60dB gain) | 105dBr |
| Signal-to-noise Ratio (fs @ 65dB gain) | 100dBr |
| Signal-to-noise Ratio (fs @ 70dB gain) | 95dBr |
| Maximum Output (1kHz @ 10kΩ) | 20.0 Volts (XLR) / 10.0 Volts (RCA) |
| Output Impedance | 50Ω |
| IEC Curve Effect | -7dB @ 10Hz |
| Frequency Response | 20Hz - 20kHz (±0.1dB) |
| Crosstalk @ 1kHz | -106dB |
| IMD | < 0.001% |
| THD (20Hz - 20kHz) | < 0.0008% |
| 12 Volt Trigger Output Operation | Direct Logic (0V = off, 12V=on) using a 3.5mm mono jack with an output impedance of 1000Ω and current requirement of 12mA |
| Available Faceplate Finishes | Black and Silver |
| Power Consumption | 6 Watts |
| AC Power Requirements | 120V / 60Hz 220-240V / 50Hz |
| Fuse Replacement 120V / 220-240V | 200mA short slow blow / 100mA short slow blow |
| Shipping weight | 40 lbs / 18 kgs |
| Dimensions (W x H x D) | 18.75 x 4.1 x 16.81 in. (47.6 x 10.4 x 42.7 cm.) |
| Specifications are subject to change without notice. |