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> 810LP Reference dual mono phono voorversterker


"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 true purist design that’s destined to become
the new reference for analog playback

A dual-mono fully balanced differential design, the MOON 810LP is our first 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 810LP to work with virtually any available phono cartridge.

Astonishing analog reproduction
combined with unsurpassed flexibility!

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.

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 MOON 850P Preamplifier

4 stages of our newly developed M-LoVo (MOON Low Voltage) DC regulation circuit; a highly sophisticated circuit made up of a clever combination of IC’s and discrete parts that is virtually
free of noise, yielding an exceptionally fast, precise, and stable DC voltage. The result is a
power supply with a noise floor of -150dB related to 1.0V, DC - 100kHz

Adjustable impedance loading - 64 available settings from 12.1Ω to 47kΩ

Adjustable capacitance loading - 16 available settings from 0pF to 1120pF

Adjustable gain settings - 16 available settings from 40dB to 70dB

Selectable equalization curves for both the RIAA and the IEC standards

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

Customized parts include metallized polypropylene film capacitors with very tight tolerances of 1%

4-Layer PCB’s 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 (2x 200mH)

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.

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 microphone jack with an output impedance of 1000 Ω and current requirement of 12mA
Power Consumption: 6 Watts
AC Power Requirements: 120V / 60Hz 240V / 50Hz
Fuse Replacement - 230V : 0.1A short slow blow
Gewicht: 18 kg
Breedte 476 mm
Hoogte: 101 mm
Diepte: 426 cm

In the Box
- AC power cable
- One (1) pen shaped plastic hand tool for making DIP-switch adjustments
- Owner’s manual



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