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Incredibly rare opportunity to purchase a Sugden MusicMaster class A power amplifier. Loathe to see this treasured amp go but require funds. Excellent condition. Boxed in original packing complete with user manual and UK power cord.rnrnCollection preferred but can send double boxed and fully insured via next day delivery for £40. Will not ship overseas.rnrn
It's a seller's market for rare vintage Sugden Class A power amps like the MusicMaster, with scarcity driving prices up—few surface in good shape. At GBP£1,595 for excellent condition, this sits ambitiously at the high end; recent forum chatter pegs fair used values around GBP£1,200-1,500 for serviced examples, though pristine ones have held firm or climbed amid collector demand.
Buyers, verify service history first—check for recapped power supplies and bias stability, as these 1970s beasts suffer from dried electrolytics and thermal drift if neglected. Insist on original manual, schematic if possible, and test for channel balance at full output; no speaker terminals or fuses included? Walk away.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Sugden Audio: British Heritage and Class A Excellence
Sugden Audio was founded in 1967 by James Edward Sugden in Cleckheaton, West Yorkshire, as a division of Research Electronics, his earlier scientific instrument manufacturing company. Sugden's background in precision engineering and broadcast equipment design at EMI informed the company's founding philosophy of meticulous craftsmanship and sonic integrity. The brand has remained rooted in British manufacturing throughout its history, maintaining its West Yorkshire base and family involvement through successive generations, most recently under the stewardship of the Miller family alongside the long-term Sugden team.
The company is synonymous with Class A solid-state amplification, having pioneered this technology with the legendary A21 integrated amplifier in 1967—widely recognized as the first commercially produced pure Class A solid-state amplifier. Sugden's product portfolio centers on high-end electronics, particularly integrated and power amplifiers, alongside preamplifiers. The brand's design philosophy emphasizes minimalism and musicality over unnecessary features, captured in their tagline "Rescuing Music from technology." All products are hand-built to exacting standards, reflecting Sugden's commitment to quality over mass-market appeal.
Sugden occupies a distinctive position in high-end audio as a niche boutique manufacturer with deep credibility among serious audiophiles and collectors. The A21 remains in continuous production—now in its A21a iteration—making it one of the longest-running models in specialist hi-fi. Vintage Sugden equipment has become highly sought-after by collectors, while contemporary designs maintain the brand's reputation for sonic excellence and engineering precision that has defined British audio craftsmanship for nearly six decades.
See all Sugden listings on RADAR.
