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US$665 is firmly ambitious against the current used-market anchor: it sits well above the 75th percentile of US$258, so this is not a bargain buy. For a clean, working S800 that may be right for a collector or someone who specifically wants one now, but the price is a stretch for a 2-channel amp in the broader used pool.
The upside here is real if it’s truly a great-condition example: the S800 is a respected JBL Synthesis piece, rated at 200W x 2 or 800W bridged, with serious build quality and enough drive for demanding systems. If the amp is original, quiet, and complete, that helps, but at this level I’d want strong proof of service history, honest testing, and intact cosmetics before paying up.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
JBL traces its roots to 1946, when pioneering audio engineer James Bullough Lansing founded the company in Los Angeles, California, initially as James B. Lansing Sound, Incorporated. A veteran of loudspeaker design from earlier ventures like the Lansing Manufacturing Company and collaborations on Hollywood's first practical cinema systems, Lansing infused JBL with his relentless pursuit of acoustic clarity and fidelity. Though he passed away in 1949 amid financial strains, the brand endured under new leadership, accelerating in 1969 with acquisition by Harman International—now under Samsung—fueling global expansion and innovation.
JBL excels across professional and consumer audio realms, renowned for its loudspeakers that dominate studios, touring rigs, cinemas, and home setups. Iconic models like the D-130 woofer, Paragon stereophonic system, and L-100 Century defined eras of high-output sound, while modern lines span portable Bluetooth speakers, wireless headphones, soundbars, and pro monitors. The brand prioritizes robust transducers, advanced horns, and diamond-surround tech over niche components like turntables, DACs, or cables.
Positioned as a mid-tier powerhouse with pro-grade heritage, JBL commands respect among discerning buyers for delivering punchy, reliable performance at accessible prices, bridging live-event energy and home listening without high-end esoterica. Its vintage icons draw collectors, yet contemporary ubiquity in arenas and everyday gear cements market dominance for those valuing scale and excitement over boutique refinement.
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