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Moon 400M Mono Power Amplifier (each)

$8,999.00 inc. GST

  • Output Power at 8Ω 400 W mono
  • Made in Canada
  • 10 year warranty
SKU: N/A Category: Brands: .



Extremely powerful, yet with a delicacy and articulation of the best amplifiers out there, the 400M Power Amplifier can take on virtually any loudspeaker you connect it to. Delivering a bottom-end slam, with authority and weight to the foundation of the music, it will transport you into a live concert environment. On the top end of the musical spectrum, the 400M delivers finesse, detail and refinement that can challenge your perception of reality vs. recorded music.

without equal

When used in conjunction with the 350P Preamplifier, the results are without equal. There isn’t a more refined combination at this price point. An ultimate combination for the discerning music lover, and for those who like to listen at higher sound levels.

key features

Of course, key features you’d expect in a MOON product are present such as 12V triggers and an RS-232 port for custom-install environments.

Design features
  • Fully balanced differential circuitry.
  • Precision matched proprietary MOON Bipolar output transistors for improved bass response and accurate sonic reproduction.
  • An oversized power supply using a custom proprietary toroidal transformer design.
  • A high damping factor yielding superior musical dynamics, improved signal speed & refined timbre accuracy.
  • “Class A” output to 10 watts for greater efficiency.
  • Optimized selection of very high quality electronic components.

Sold individually

Additional information


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Output Power at 8Ω 400 W
Output Power at 4Ω 650 W
Input Sensitivity: 800mV RMS
Input Impedance: 47,500Ω
Gain: 36dB
Signal-to-noise Ratio: 106dB @ full power
Frequency response: (full range) 10Hz – 125kHz +0/-3dB
THD (20Hz – 20kHz @ 1 W) 0.02%
THD (20Hz – 20kHz @ 400 W) 0.05%
Intermodulation distortion: 0.02%
Shipping weight: 33 lb / 15 kg
Dimensions: (width x height x depth) 16.9 x 3.5 x 14.0 in or 42.9 x 8.9 x 35.6 cm

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