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This is a buyer’s market for used integrated amplifiers, and £245 is a fair, well-supported price rather than a bargain. It sits just above the £237 median of 12 comparable listings, comfortably within the £220–£266 market range, and below the £266 upper quartile. For a known, desirable example, that is reasonable money.
The KI Signature remains appealing for its musical, clean presentation, copper-plated chassis, toroidal transformer, upgraded capacitors, and useful MM phono stage. Its 50 watts per channel into 8 ohms is ample for sensible partnering speakers, while the straightforward range of inputs adds practical value. At this price, condition matters: confirm both channels are clean, the controls and input selection work properly, and ideally that the original remote is included. With those checks passed, this looks like a sound buy rather than an overreach.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Marantz originated in the United States, founded in 1953 by Saul Bernard Marantz, a music enthusiast and amateur musician born in Brooklyn in 1911. Dissatisfied with the audio equipment of the era, he crafted the groundbreaking Audio Consolette preamplifier in 1952 from his New York home, selling the first 100 units rapidly and prompting the formal establishment of the company in Woodside, Queens. Though production later shifted to Japan in partnership with manufacturers like Standard Radio in 1966, and the brand evolved through ownership changes including Superscope and eventual integration into larger groups, its heritage remains rooted in American ingenuity and a relentless pursuit of musical fidelity.
The brand excels in high-end audio components, particularly amplifiers, preamplifiers, and integrated systems that defined its golden era. Iconic models like the Model 7 preamplifier (1958), Model 9 power amplifier (1960), and Model 10B tuner (1964) set benchmarks for performance, while later offerings expanded to tuners, receivers, and CD players. Marantz briefly ventured into speakers under designer Ed May in the 1970s but focused primarily on electronics rather than turntables, headphones, DACs, or cables, emphasizing separates renowned for their "Most Musical Sound."
Marantz commands a premium position in the hi-fi market, revered as a high-end pioneer that shaped the audiophile landscape through the 1970s zenith. Today, it blends vintage allure with modern elegance, appealing to discerning buyers who value durability, innovation, and warm, detailed sound signatures over mass-market accessibility.
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