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• Product Overview – The Krell KSA200S Amplifier, released in 1995, is a solid-state pure Class A stereo power amplifier delivering legendary current capability, extreme control, and the authoritative sonic signature Krell is known for.
• Amplification Topology – Designed with massive power supplies and fully balanced circuitry, the KSA200S operates in continuous Class A, providing unwavering drive, low distortion, and exceptional loudspeaker control even under demanding loads.
• Sonic Performance – Krell KSA200S Amplifier delivers explosive dynamics, deep controlled bass, and a neutral tonal balance, excelling with difficult speakers and large-scale orchestral or rock recordings at realistic listening levels.
• Specifications – Rated at 200 watts per channel into 8 ohms, doubling into 4 ohms, with stable operation into 2 ohms, ultra-high current output, and extremely low output impedance for maximum damping factor.
• Dimensions – Chassis measures approximately 438 mm (W) × 197 mm (H) × 546 mm (D), reflecting the substantial heatsinking and transformer size required for sustained Class A operation.
• Weight – Weighs approximately 72 kg, with the extreme mass attributed to oversized transformers, extensive heatsinks, and heavy internal construction designed for thermal stability and long-term reliability.
This S$3,200 listing for the Krell KSA 200S is a strong deal, sitting well below the typical used market range of roughly S$4,600 to S$5,800 derived from global listings in Europe (€3,450 ≈ S$5,400), Malaysia (RM8,800 ≈ S$2,900–S$3,100 for lower condition), and Korea (KRW2.9M ≈ S$5,200). Given the “very good” condition and the amplifier’s legendary status, this price represents genuine bargain territory for a well-loved classic.
The KSA 200S is revered for its Sustained Plateau biasing, delivering rock-solid 200Wpc into 8 ohms with power that doubles down to 1,600Wpc at 1 ohm, making it a powerhouse for difficult speakers. Its current-sourcing ability and low distortion (0.05% THD) ensure clean, dynamic sound even at high volumes. At this price, it’s a rare buying opportunity for a listener seeking top-tier American high-end performance without the new-market premium—especially since Krell ceased operations in 2024, making pristine used units increasingly scarce.
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.
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