Simaudio MOON Evolution 610LP Balanced Phono Preamplifier

MOON by Simaudio

Featuring a dual-mono, fully balanced differential circuit layout, the MOON 610LP is a purist design heavily based on the reference grade MOON 810LP.

  • Featuring a dual-mono, fully balanced differential circuit layout, the MOON 610LP is a purist design heavily based on the reference grade 810LP. Since one of our strengths is “Research & Development”, we have the ability to create a reference grade product and then offer a more accessible model which encapsulates most of the technology and performance of the reference.

    The 610LP combines customized parts in an ultra-refined audio circuit which is fed by a unique power supply. Located within the main chassis, this oversized power supply is housed in a satin coated, 14-gauge steel isolated enclosure which eliminates all traces of AC artifacts. Also within this enclosure is a high quality toroidal transformer, a ‘pi-type’ filter to reduce AC transmission noise and multiple stages of voltage regulation. These factors result in a power supply that exceeds the performance of a battery supply with respect to both audio signal-to-noise ratio and voltage regulation.

    A highly configurable phono preamplifier, the MOON 610LP offers selectable gain, 2 equalization curves, impedance and capacitance loading; all accomplished using DIP switches found 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 610LP to work with virtually any available phono cartridge.

    • Power supply voltage regulation includes i2DCf (Independent
    • Inductive DC Filtering); 1 inductor for each and every IC in the audio circuit’s signal path – 24 stages in all.
    • 64 impedance loading settings from 12.1Ω to 47kΩ.
    • 16 capacitance loading settings from 0pF to 1120pF.
    • 16 gain level settings from 40dB to 70dB.
    • Selectable equalization curves for RIAA and IEC standards.
    • Fully compatible with 820S external power supply.
    • Customized parts include metallized polypropylene film capacitors with very tight tolerances of 1%.
  • Inputs (XLR / RCA): 1 pair / 1 pair

    S/N Ratio (full scale @40dB gain): 112dBr

    S/N Ratio (full scale @70dB gain): 93dBr

    IEC Curve Effect: -7dB @ 10Hz

    Frequency response: 20Hz - 20kHz ±0.1dB

    Crosstalk @ 1kHz: -106dB

    Output impedance: 50Ω

    THD (20Hz - 20kHz): 0.001%

    Intermodulation distortion: 0.002%

    Input overload @40dB gain (XLR / RCA): 200V RMS / 100V RMS

    Input overload @70dB gain (XLR / RCA): 5mV RMS / 2.5mV RMS

    Shipping weight: 40 lbs / 18 Kgs

    Dimensions (width x height x depth): 18.75 x 4.0 x 16.8 in. 47.6 x 10.2 x 42.7 cm.