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The asking price looks ambitious at US$1,800 versus a typical used market centered at US$1,200, with the upper quartile at US$1,800. That puts this listing right at the top of the recent range, so it is not a bargain unless the condition, provenance, or included extras are especially strong.
The M5si is well regarded for its muscular grip, generous current delivery, and easy, full-bodied sound that works well with a wide range of speakers. For a buyer, the upside is straightforward: if it’s clean, fully functional, and from a careful owner, it can be a very satisfying long-term integrated amp. At this price, though, I’d want clear proof of service history, original accessories, and no signs of heat-related wear or channel issues before calling it a buy.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Musical Fidelity, a British hi-fi icon, traces its roots to 1982 when clarinettist and audio enthusiast Antony Michaelson founded the company in London. Disillusioned with the sound quality of existing gear after his stint at predecessor Michaelson & Austin, he handcrafted his debut product—a minimalist preamplifier dubbed "The Preamp"—on his kitchen table. Paired with the quirky Dr. Thomas power amplifier, these designs disrupted the market with their bold aesthetics and sonic punch, establishing Michaelson’s experimental ethos from the outset.
The brand has long centered on amplifiers as its cornerstone, spanning integrated, power, phono, headphone, and preamp models renowned for Class-AB topology and innovative touches like Nuvistor tubes. It expanded into streaming players, DACs, CD players, Bluetooth receivers, all-in-one systems, and even headphones and turntables, always prioritizing musicality over convention. Unconventional industrial designs, from curved heatsinks to sculptural panels, became signatures, influencing competitors.
Positioned firmly in the high-end arena, Musical Fidelity commands respect among discerning audiophiles for its value-driven performance and soulful sound. Iconic models like the A1 and F-series endure as collector favorites, blending accessibility with premium engineering. Acquired by Austria’s Audio Tuning in 2018, it continues evolving under new stewardship while honoring its heritage as a boutique force in British hi-fi.
See all Musical Fidelity listings on RADAR.
audio-markt.de
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Reverb
eBay UK
↓ 6%
GB
audio-markt.de
Good
eBay UK
GB
StereoNET
Like new
AU
