Simaudio MOON 600i Evolution Integrated Amplifier


Still under the 10 year warranty which is transferable.

The Simaudio Moon Evolution is one of my all time favorite lines of equipment and would be in my top 5 list if I had to choose a system to suit me for the rest of my life.

This particular piece is a very capable integrated with a respectable power output (125W at 8 ohms) which operates in class A mode for the first 5W.

Line output jack allows for a great upgrade path if you decide to go to an external amplifier making this piece futureproof.

It also has one of the most readable displays in the industry visible from just about any angle and distance.

The casework is the best I’ve seen with amazing fit and finish. It utilizes the heaviest gauge metal panels and heatsinks I’ve seen in this category.

Here is a link to a great review:

Condition is near perfect, not a visible scratch or fingerprint. All functions work as they should and it has been fully tested.

Comes complete as it would from the factory including the manual, remote, spikes, and packing materials (double box).

Design features

  • Our “no overall feedback” amplifier circuit design for more accurate musical reproduction.
  • An oversized dual-mono power supply.
  • “Class A” power output to 5 watts for greater efficiency.
  • Gain offset adjustment of ±10dB for each line input.
  • Each line input is fully configurable to be “home theater ready”, whereby the 600i’s volume control is bypassed.

Product features

Output Power at 8Ω
125 Watts per channel

Output Power at 4Ω
250 Watts per channel

Input Sensitivity
490mV - 6.0V RMS

Input Impedance

Inputs (RCA / XLR)
4 pairs / 1 pair


Frequency response (full range)
10Hz - 100kHz +0/-0.1dB

Crosstalk @ 1kHz

THD (20Hz - 20kHz @ 1 watt)

THD (20Hz - 20kHz @ 125 watts)

Intermodulation distortion

Shipping weight
48 lbs / 21 Kgs

Dimensions (width x height x depth)
18.75 x 4.0 x 18.1 in. / 47,6 x 10,2 x 46,0 cm.

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