MOON by Simaudio



The MOON 330A is a good old-fashioned power amplifier, representing great value, and great sound. It delivers tight, extended and authoritative bass with power, weight and articulation. Higher frequencies are equally well represented, combining to provide a very musical performance. 330A is a sleek but hefty design, with just a power button and blue LED on the facia, rated output into 8 ohms is 125 watts per channel, and 250 into 4 ohms, with the choice of XLR or RCA inputs from a preamplifier. Combines brilliantly with MOON’s 390 preamplifier.

This product qualifies for free, remote installation by one of our technicians.

Dimensions: 42.9 x 8.9 x 35.6 cm
Weight: 15kg

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The MOON 330A is a differential stereo power amplifier that effortlessly produces 125 watts/channel into 8Ω and 250 Watts/channel into 4Ω. 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: Simaudio’s highly acclaimed Advanced Renaissance amplifier circuit with zero global feedback, DC-coupled circuitry and their own proprietary bipolar output transistors. In the end, the class A/AB MOON 330A performs in an exceedingly musical and accurate way.

The 330A represents not only an amazing value, but also amazing sound. It delivers a tight, extended and superbly authoritative bass with power, weight and articulation. Vocals and cymbals float in a musical space filled with the air and natural ambience of a musical performance. When partnered with the 390 streaming preamplifier, the combination provides a musical performance so complete and satisfying that one wonders if it can get any better.

Technically, the 330A is the stereo version of the flagship 400M Monoblock Amplifiers. Like all MOON products, the 330A is built to the highest standards of materials, quality control, reliability and performance that has made MOON products so famous and respected around the world.

A musically engaging experience. Simaudio’s 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.

Available in the following finishes:
All black (as standard)
Two-tone, black and silver
All silver (special order)

MOON 390 and 330A

MOON 390 and 330A

  • 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.
  • Precision matched proprietary MOON Bipolar output transistors with unprecedented gain linearity, resulting in improved bass response and even more accurate sonic reproduction.
  • A high damping factor for superior musical dynamics, improved signal speed and refined timbre accuracy.
  • Balanced differential circuitry.
  • “Class A” output to 5 watts for greater efficiency.
  • 12 Volt trigger input/output for remote operations.
  • RS-232 port for (i) full unsolicited bidirectional feedback and (ii) firmware updates.
  • Rigid chassis construction to minimize the effects of external vibrations.
  • Optimised selection of very high quality electronic components.
  • Low operating temperature for an ultra-long life expectancy.
  • Proprietary MOON Bipolar output transistors.
  • A high damping factor yielding superior musical dynamics.
  • PCB with pure copper tracings & gold plating that yields low impedance characteristics.