Moon by Simaudio 330A Stereo Power Amplifier

MOON 330A Stereo Power Amplifier - Front

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MOON 330A Stereo Power Amplifier - Rear

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The MOON 330A is a differential stereo power amplifier that effortlessly produces 125 watts/channel into 8O and 250 Watts/channel into 4O. Think of tight, deep, authoritative bass with lightning fast speed, an incredibly low noise floor, excellent dynamic range, a transparent lifelike soundstage and the 330A will come to mind. This is the the result of a variety of proven technologies: Our highly acclaimed Advanced Renaissance amplifier circuit with zero global feedback, DC-coupled circuitry and our own propritary bipolar output transistors. In the end, the class A/AB MOON 330A performs in an exceedingly musical and accurate way.

A musically engaging experience

Our own unique heat-sink geometry allows for ultra-effective and efficient cooling. The amplifier’s oversized power supply contains a large proprietary toroidal transformer and substantial energy storage. Finally, with both balanced (XLR) and single-ended (RCA) inputs, the MOON 330A represents the ultimate choice for performance, reliability and affordability.


Significant Desing Features:
  • 12 Volt Trigger input and output
  • A "no overall feedback" design resulting in genuine real-time amplification, a more accurate musical reproduction with respect to tonality, virtually non-existent intermodulation distortion and the elimination of common phase errors resulting from feedback
  • An oversized power supply
  • Custom proprietary toroidal transformer design with lower magnetic, electrical and thermal loss, yielding an improved power transfer and lower regulation factor. The result is increased current speed and better dynamics
  • Balanced differential circuitry
  • Class A output to 5 watts for greater efficiency
  • Proprietary MOON Bipolar output transistors with unprecedented gain linearity resulting in improved bass response and even more accurate sonic reproduction
  • A high damping factor yielding superior musical dynamics, improved signal speed and refined timbre accuracy
  • RS-232 port for
    i) full unsolicited bidirectional feedback in custom installation setups; and
    ii) firmware updates
  • PCB w/ pure copper tracings & gold plating that yields low impedance characteristics
  • Extremely rigid chassis construction to minimize the effects of external vibrations
  • Accurate matching of the very finest high quality electronic components in a symmetrical circuit design
  • Designed to be powered up at all times for optimal performance
  • Low operating temperature to ensure a longer than normal life expectancy.

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Ann Arbor, Michigan 48104
Phone: 734-662-1812