Philip Beaudette's Moon 310LP phono stage review sample sat on his doorstep for two or three hours at 20 degrees below zero Celsius, and the black steel case was painful to hold. After a night on the kitchen table it worked fine, and the hard part was describing it, because, as he wrote for SoundStage! Hi-Fi, "it doesn't really sound like anything at all." That is the Moon idea, electronics that add nothing. Most amplifiers clean up their own errors by feeding part of the output back to the start, a trick called feedback. Moon amplifiers have gone without the main feedback loop since the 1990s, and the newest ones fix errors with a separate correction circuit that stays out of the music's path. Herb Reichert of Stereophile calls the house sound "fast, clean, and super-articulate," and What Hi-Fi? hears the 641 as a touch smoother and sweeter than strict neutral, which makes it forgiving of rough recordings. Moon suits listeners who want a quiet, even-handed system to live with for years.

Moon sells two collections. Compass is the way in, and its 371 is a smart first buy because it puts streaming, a DAC, a phono stage and HDMI for a television in one box. North is the top tier, and the 641 integrated is its entry point. It has no digital inputs or phono stage, so pair it with the 681 DAC or your own. Alan Sircom of Hi-Fi+ says any speaker "that isn't the size of a small asteroid" will do well with that pair, and What Hi-Fi? gave up before the 641 did. HiFi Turtle heard the bigger 791 and 761 pair make a two-way YG Talus floorstander dig like a three-way. For vinyl, the 310LP phono stage is the middle step, and Simaudio recommends its XLR outputs for extra gain. At the top, the 891 wants its three transit bolts removed and 100 hours of running in. Registering your Moon can extend the warranty to ten years.

Victor Sima founded Sima Electronics in Quebec in 1980, and the company says many of its earliest products were aimed at professional users before reaching homes. Simaudio says its Celeste series of the 1990s, with oval faceplates, is what first drew international reviewers, and Neil Gader of The Absolute Sound still remembers the Celeste PW-5000 integrated for the quicksilver speed he hears in Moon products today. The Moon name arrived in 1997 by Simaudio's timeline, with the i-5 integrated and W-5 power amplifier as its defining early products. Sircom calls volume controls a Moon obsession, and Costa Koulisakis says the company has used its own design since 1995. Simaudio machines its own chassis parts, a rarity Robert Harley noted in 2013, and every product is hand-assembled in Boucherville, Quebec. The 888 monoblock remains the statement piece. In 2022 Simaudio built its first loudspeaker, the Voice 22, and EISA named it and the ACE player High-End Stereo System of the year. The North Collection followed in 2023.