Simaudio MOON Evolution 870A Two Channel Power Amplifier

MOON by Simaudio

The Evolution of amplification... Massive power reserves allow the music to reproduce effortlessly at any volume level.

  • The MOON 870A Power Amplifier is a balanced differential dual-mono design with both exceptional transparency and remarkable sound stage, despite its immense output power rating. Ultimately, the 870A will mate seamlessly withany loudspeaker, allowing it to reach its full sonic potential,regardless of its load.

    Several in-house developed advancements allow the MOON 870A to perform with both exceptional accuracy and a grain free character; These include (i) MOON output transistors,specifically designed for use in our amplifiers, providing tighter and more visceral bass performance, as well as unprecedented linearity thoughout the entire frequency spectrum; (ii) our advanced “zero global feedback” circuit,commonly referred to as Lynx; and (iii) an over-sized power supply featuring 2 massive custom proprietary toroidal transformers for an improved power transfer and lower regulation factor, resulting in increased current speed and superior dynamics.

    Pairing the MOON 870A with the reference 850P Preamplifiercreates an astonishing, very high performance and “Stateof-the-Art”package. Of course, the key features you wouldexpect from a MOON Evolution series power amplifier arepresent such as an RS-232 port and 12 Volt triggers forcustom-install environments. 

    • Our “Lynx” Technology which eliminates feedback and results in: Real-time amplification; More accurate musical reproduction with respect to tonality; Non-existent transient intermodulation distortion; The elimination of phase errors resulting from feedback.
    • Output stable to any known speaker impedance.
    • “Class A” power output to 5 watts for greater efficiency.
    • A high damping factor for superior musical dynamics, improved signal speed and refined timbre accuracy.
    • Self-diagnostic system that detects both over-heating and the presence of DC in the input signal. 
  • Output Power at 8Ω: 300 Watts per channel

    Output Power at 4Ω: 600 Watts per channel

    Output Power Bridged Mono at 8Ω: 1200 Watts

    Input Sensitivity: 1400mV RMS

    Input Impedance: 47,500Ω

    Gain: 31dB

    Signal-to-Noise Ratio: 106dB @ full power

    Frequency Response (Full range): 10Hz - 200kHz +0/-3.0dB

    Crosstalk @ 1kHz: -105dB

    THD (20Hz - 20kHz @ 1 watt / 300 watts): 0.015% / 0.04%

    Intermodulation Distortion: 0.006%

    Shipping Weight: 98 lbs / 44 Kgs

    Dimensions (Width x Height x Depth): 18.75 x 7.5 x 17.5 in. 47.6 x 19.2 x 44.5 cm