Integrated Amplifier

i-3Integrated Amplifier

The more affordable alternative to the i-5

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Launched in 2002, Discontinued in 2007

The MOON i-3 integrated amplifier combined numerous technologies found in Simaudio MOON preamplifiers and amplifiers. Offering very high quality sonic performance, it represented an affordable alternative to the MOON i-5. Features included remote control operation, a maximum continuous power output rating of 100 watts per channel into 8 ohms (160 watts into 4 ohms), six line-level inputs including a "home theater ready" input and a preamplifier output. 

The SE (Special Edition) version of the MOON i-3 benefited from electronic parts with higher tolerances in several key areas of the circuit. The result was improved sonic performance. 
The SE version of the MOON i-3 was available ONLY in North America

User manual

Technical aspects

An oversized power supply
A custom proprietary toroidal transformer design with lower magnetic, electrical and thermal loss,
yielding an improved power transfer and lower regulation factor, resulting in increased current
speed and better dynamics
An extremely short capacitor-free signal path measuring 18.5 inches in length from input RCA's to
output binding posts, eliminating virtually all potential sources of interference and producing a
sonically faster transient response
Gain section using a Crystal microprocessor functioning as a "shunt to ground" that doesn't
degrade sonic performance regardless of the setting
One single-ended audio input which bypasses the gain stage to accommodate a component, such as a home-theatre processor, whose own volume control is used instead
Amplifier section using a "no overall feedback" design resulting in real-time amplification, more
accurate musical reproduction with respect to tonality, virtually non-existent intermodulation
distortion and the elimination of common phase errors resulting from feedback
"Class A" output power to five watts for greater efficiency
Precision-matched Bipolar output devices which offer superb linearity throughout the entire
audio frequency spectrum
A symmetrical circuit design
Accurate matching of the high quality electronic components
Pure copper circuit board tracings with extremely low impedance characteristics
Improved reliability through the elimination of moving parts
Designed to be powered up at all times for optimal performance
Low operating temperature for a longer than normal life expectancy.

Magazine reviews

 AUDIO (Norway)  Stian Gårdsvoll   March 2004
 Audio Video   (Indonesia)  Tim Avi  July 2004
 Australian hi-fi  Chris Croft  Oct./Nov. 2004
 Diapason   (France)  Thierry Souveaux  November 2002  #497
 Fedelta del Suonu   (Italy)  Giacomo Pongelli  Guide no. 11   (Sept. 2006)
 Haute Fidelité   (France)  Z.Bourjet & L.Thorin  January 2003
 HIFI   (Finland)  Staff  September 2005
 HIGH Fidelity   (Poland)  Wojciech Pacula  Feb./March 2008 #46   Version RS
 Hi-Files   (Serbia)  Zoran Karapandzic  November 2007  No. 20
 hi-fi+   (United Kingdom)
 Chris Thomas  March 2008   #57   Version RS
 hi-fi+   (United Kingdom)
 Chris Thomas  May 2004   #31
 HiFi Test   (Germany)  Volker Frech  2/2004
 HI-FI WORLD   (United Kingdom)
 Adam Smith  April 2008   Version RS
 HI-FI WORLD   (United Kingdom))
 Channa Vithana  September 2005
 The Inner Ear Report   (Canada)  Ernie Fisher  2003 - Vol. 15 #3
 Son & Image   (Canada)  Staff  Vol. 3 no. 6   2002
 SoundStage!   (www)  Doug Schneider  July 2003   (www)
 Stereophile   (USA)
 Art Dudley  October 2003   (www)
 What HI*FI?   (United Kingdom)
 Staff  November 2007   Version RS
 What HI*FI?   (United Kingdom)
 Staff  Juin 2003