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At £848, this sits just below the £855 25th percentile, so it reads as a strong buy / bargain versus the recent UK asking-price set, not merely a fair deal. It is also comfortably under the £874 median, which gives you a little buffer even before factoring in negotiation room.
That makes sense for a Musical Fidelity integrated of this type: the M5si is well regarded for plenty of clean power, a full-bodied presentation, and easy drive with real speakers, so it’s the sort of amp that can anchor a system for years. A clean example at this price is worth moving on quickly, especially if it’s been well cared for and includes the remote, original box, or proof of service—those extras add real buyer confidence.
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
Good
eBay UK
↓ 6%
GB
audio-markt.de
Good
eBay UK
GB
StereoNET
Like new
AU
StereoNET
Excellent
AU
