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This is a fair ask, a touch on the ambitious side. At £1,395, it sits above the £1,191 median and also past the £1,352 75th percentile for recent UK comparables, so it’s not overpriced in a dramatic sense, but you’d want strong condition and a complete package to feel fully comfortable.
The M5si is well regarded for its muscular, unforced presentation, generous power, and proper all-in-one simplicity, so it’s an easy amp to live with if you want drive and scale without fuss. If it’s clean, unmodified, and includes the remote and original box, it remains a solid buy; if anything is missing, I’d expect a bit more negotiation room at this level.
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.
eBay UK
↓ 6%
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audio-markt.de
Good
StereoNET
Like new
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StereoNET
Like new
AU
StereoNET
Excellent
AU
eBay UK
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