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The unknown condition matters, but at GBP £466 this is a strong deal: it sits below the GBP £505 25th-percentile figure and well under the GBP £682 median from eight comparable listings. Even allowing for a little uncertainty, the price leaves useful headroom provided it powers up cleanly and the seller can demonstrate normal operation.
The M3si is a particularly capable all-rounder, combining 85 watts per channel with a worthwhile MM phono stage, four line inputs and asynchronous USB input. It has the current and composure to suit a broad range of speakers, while its clean, lively presentation makes it an easy recommendation for a mixed analogue/digital system. Check the remote, both channels, input switching, phono performance and USB operation, but absent a specific fault, this looks like a genuine buying opportunity rather than merely a fair listing.
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.
