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The Leben CS600 is a living, lovable classic known for its rich tube warmth and ability to drive diverse speakers musically. At £3,700, this asking price is a genuine bargain, sitting well below the typical used market range of roughly £4,500 to £6,000 for units in excellent condition. This represents a strong deal, especially compared to the current retail price of the newer CS600X model, which starts around £7,999.
This amplifier is well-regarded for its 32W output using 6L6GC tubes (or 28W with optional EL34s), delivering a wide frequency response up to 100kHz that suits modern digital formats like SACD. Its five RCA inputs and tape monitor add practical versatility, while the switchable output tubes offer tonal flexibility. Given the discontinued status of the original CS600 due to dwindling input tube supplies, finding one at this price is a timely buying opportunity for enthusiasts seeking original Japanese tube character without the premium of the newer X version.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Leben Hi-Fi Stereo Company emerged from the vision of Taku Hyodo, a renowned Japanese tube audio engineer formerly with Luxman. After founding Kouri Denki Co. in 1979 to produce electronic components, Hyodo released his first commercial amplifier, the Triode 33 under the KFH brand, in 1991. He established Leben in 1992—drawing its name from the German word for "life," reflecting his philosophy that music is life—with the debut RS-35a power amplifier in 1995, followed by the RS-28c preamplifier in 1998.
The brand specializes exclusively in hand-built vacuum tube amplifiers, including integrated models like the celebrated CS-300 series, power amps, and preamplifiers. Crafted with point-to-point wiring, premium components, and often rare NOS tubes, Leben eschews mass production for meticulous, small-batch assembly by a skilled team. Features such as headphone outputs, bass boosters, and speaker selectors enhance versatility, while remote controls are notably absent in favor of pure analog focus.
Leben occupies a niche boutique position in the high-end hi-fi market, prized by tube enthusiasts for its musicality, reliability, and lifelike sound. Once Japan-exclusive, its global cult following has grown through limited exports, earning acclaim in audiophile circles as passion-driven masterpieces that deliver rewarding performance without compromise.
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