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When new, the Musical Fidelity M6s PRX sold around US$4,299, so US$2,599 represents a substantial discount, but it is still an ambitious used asking price: it sits above the recent comparable 75th percentile of US$2,450 and well above the US$1,998 median.
The appeal is real. This is a seriously capable, fully balanced dual-mono amplifier delivering 230 watts per channel, with strong current delivery, excellent speaker control, and a clean, neutral presentation. It makes particular sense for demanding or inefficient speakers and offers both RCA and XLR inputs. At this price, however, condition, original packaging, accessories, and a convincing service history matter; otherwise, negotiation toward roughly US$2,000–US$2,450 would make it considerably more compelling.
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.
