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Musical Fidelity’s X-PSU v3 is the revered external power supply that unlocks the full potential of the Triple X V3 lineup, turning a competent DAC into a genuinely compelling one. At £308, this asking price is ambitious; typical used units cluster around £125–£175, with a 2026 median near £160, so you’re paying roughly double the norm.
That premium is only justifiable if the unit is in pristine, original-owner condition with all four DIN linking cables and the box included. The X-PSU v3 delivers a massive noise-floor drop and tighter bass when paired with an X-DAC v3 or X-CAN v3, and it’s built like a tank with no known failure points. If those accessories are present and the finish is clean, it’s a solid buy for a system upgrade; if anything’s missing or the condition is questionable, walk—there’s no reason to overpay for this otherwise straightforward, highly effective PSU.
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.
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