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This US$7,699 asking price for the used Esoteric S-05 is a strong deal, landing well below the 25th percentile of US$8,451 from our recent comparable listings, and significantly under the median of US$9,697. With the 75th percentile at US$11,253, this listing offers clear bargain value for a Class A amplifier that delivers 60W into 8Ω and 120W in mono, prized for its ultra-low distortion of 0.007% and wide 5Hz–100kHz bandwidth.
The S-05 is a rare, high-end power amplifier celebrated for its bold Class A design in an era dominated by Class D, offering exceptional signal fidelity and a 102dB signal-to-noise ratio. Its 30kg mass and premium build suggest durability, and at this price, it’s a buying opportunity for enthusiasts seeking original-owner quality—assuming the unknown condition is verified as working, as no material caveats apply at this below-market ask.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Esoteric, a pinnacle of Japanese high-end audio engineering, emerged in 1987 as a dedicated brand under TEAC Corporation, building on decades of the parent company's expertise in audio innovation dating back to 1953. Born from Tokyo Television Acoustic Company's legacy, Esoteric was conceived to transcend conventional boundaries, channeling TEAC's vast experience into components that redefine sonic purity. Hand-assembled in its Tokyo factory, every piece reflects a relentless pursuit of excellence, merging cutting-edge technology with museum-quality craftsmanship.
The brand specializes in ultra-refined digital and analog source components, including Super Audio CD transports, high-resolution DACs, precision preamplifiers, and monoblock power amplifiers, as exemplified by its flagship Grandioso series. While not venturing into speakers, headphones, or cables, Esoteric focuses on core electronics that deliver unparalleled sound reproduction, with limited-edition models like the 2017 30th-anniversary black finishes underscoring its artisanal approach.
Positioned firmly in the high-end market, Esoteric commands reverence among discerning audiophiles for its "preeminent philosophy of sound appreciation" and timeless standards. It occupies a niche as a boutique icon of Japanese precision, where cost is no object and prestige is earned through superior acoustic engineering—recently solidified by its 2024 merger with TEAC, ensuring continued Tokyo-made dominance.
See all Esoteric listings on RADAR.
