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New Krell KMA-100s were a high-end, roughly US$1,350,000-per-pair product in their original market, but used value is the more useful comparison here. At US$6,500, this example sits above the recent comparable median of US$5,586 and above the 75th percentile of US$6,043, so the asking price is ambitious rather than a bargain. It would need unusually strong documentation or restoration to justify the premium.
The KMA-100 remains a serious, pure-Class-A monoblock: 100 watts into 8 ohms, with substantial current capability for difficult speakers and the muscular, controlled presentation that made early Krell respected. Its age makes service history important, particularly capacitors, bias, protection circuits, and output-stage health; “unknown” condition is a meaningful weakness at this money. Unless it has recent specialist servicing, consecutive serials, excellent cosmetics, and a thorough demonstration, a negotiation toward the US$5,000–US$5,600 range would be more sensible.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Krell Industries, founded in 1980 in the United States by Dan D'Agostino and his wife Rondi, emerged from a passion for pushing audio engineering boundaries. Based initially in Bridgeport, Connecticut, and later settling in nearby Orange, the brand drew its name from the advanced alien race in the 1956 film Forbidden Planet, symbolizing limitless technological power. The company's debut at the 1981 Consumer Electronics Show with the KSA-100, a high-power Class A amplifier, sparked immediate demand and established Krell as a force in American hi-fi innovation.
Krell specializes in high-end amplification, with its power amplifiers—epitomized by flagships like the Master Reference Amplifier—earning legendary status for their raw dynamics and precision. The lineup extends to preamplifiers, surround sound processors, digital-to-analog converters, CD and Super Audio CD players, loudspeakers, and subwoofers, all engineered for uncompromised performance in music and home theater systems.
Positioned firmly at the pinnacle of the high-end audio market, Krell commands respect among discerning audiophiles for its cutting-edge circuitry, massive power supplies, and relentless pursuit of sonic excellence. A top-tier brand alongside legends like Levinson and Threshold, it appeals to buyers seeking reference-level gear that defines the genre, even amid recent ownership transitions following Rondi's passing in 2024.
See all Krell listings on RADAR.
