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The Simaudio Moon 600i utilizes a dual-mono, differential (balanced) circuit topology to achieve exceptional channel separation, high dynamic range, and minimal noise. Core Engineering and Performance Features
The 600i is a serious, no-nonsense integrated, and £3,200 feels strong rather than merely fair against its original £7,300–£9,000 class and a seen-used level around £2,900–£3,200 in Europe. For an excellent-condition example, that puts it right in the sweet spot: not a fluke bargain, but a sensible buy for the money.
What makes it worth chasing is the blend of 125W into 8 ohms, proper dual-mono architecture, and the sort of control and drive that makes this amp sound bigger and more authoritative than its size suggests. If the listing includes the remote, box, and proof of careful ownership, that adds real value; otherwise, the main thing to verify is simply that the controls, inputs, and relay behavior are all clean, since a tidy, well-kept unit like this is the one you want.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Moon by Simaudio traces its roots to 1980, when Victor Sima, an Israeli émigré and qualified audio engineer, founded Sima Electronique in Canada with a deliberate mission to craft superior-sounding products at accessible prices. Initially targeting professionals, the brand—later renamed Simaudio—quickly captivated audiophiles for its sonic excellence and value. Sima retired in 1994, selling to Jean Poulin, whose leadership propelled the evolution into the premium MOON series, building on successes like the Celeste line and in-house innovations from their Quebec facilities.
The company specializes in high-performance electronics, excelling in amplifiers, integrated systems, preamplifiers, power amplifiers, and digital converters such as DACs. All products undergo meticulous hand-assembly, in-house chassis machining, and rigorous burn-in testing in Montreal-area factories, emphasizing precision engineering over mass production. While not venturing into speakers, turntables, headphones, or cables, MOON's lineup—from reference-grade flagships to the more approachable "1" series—delivers trickle-down technology for broad appeal.
Positioned firmly in the high-end market, Moon by Simaudio commands respect as a boutique Canadian powerhouse, blending audiophile purity with user-friendly design. Privately held and exported to 45 countries, it rejects esoteric tweaks in favor of natural, detailed sound that invites music lovers to truly immerse themselves, sustaining vibrant success without compromising its heritage of engineering excellence.
See all Moon by Simaudio listings on RADAR.
