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Angeboten wird „509 MK II“ von EAR Yoshino als Gebrauchtgerät aus der Kategorie „Röhren-Endverstärker“ bei audio-markt.de - dem Online-Marktplatz für High-End. Das Inserat mit der Nummer 1017800287 endet am 25.09.2026 um 01:59 Uhr.
Condition good helps, but at €12,000 this looks ambitious rather than a clean bargain. The 509 is a respected pair of 100W tube monoblocks, and recent market signs put a used pair closer to the low-to-mid five-figure range only when they are especially tidy, boxed, or freshly serviced; a straightforward good-condition example at €12,000 needs to be competitively presented to stand out.
What makes it worth considering is the EAR house sound: big dynamics, real drive, and a very refined, unforced presentation that suits difficult speakers better than many tube amps. If it’s original, properly serviced, and includes the best-case extras—boxes, manuals, and known-good valves—it’s a serious piece with lasting appeal; if not, I’d want room in the price for tube wear and any future service.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
EAR Yoshino: Editorial Brand Description
Esoteric Audio Research was founded in England in 1976 by designer Tim de Paravicini, launching with the EAR 509, a 100-watt valve monoblock power amplifier that balanced performance, reliability, and cost—a philosophy that continues to define the brand today. De Paravicini's career spans decades of audio innovation, including formative work at Lux Corporation in Japan during the 1970s, where he developed acclaimed pre/power amplifier combinations and custom valve designs. Yoshino Ltd. was established in 1994 to manufacture de Paravicini's designs under the EAR Yoshino banner, combining his English engineering heritage with Japanese manufacturing precision.
The brand specializes in valve-based audio electronics, with a product range spanning integrated amplifiers, preamplifiers, and power amplifiers. Notable designs include the iconic EAR 834P phono preamplifier series, the V12 and V20 integrated amplifiers, and the 912 preamplifier. More recently, EAR Yoshino has ventured into hybrid solid-state designs, such as the 834T integrated amplifier, while maintaining the company's core commitment to valve technology and unconventional circuit architecture.
EAR Yoshino occupies the high-end luxury segment of the hi-fi market, with products commanding premium prices that reflect meticulous design and hand-built construction. The brand has accumulated numerous awards across multiple product categories and maintains a strong global reputation among discerning audiophiles who prioritize sonic excellence and engineering integrity. De Paravicini's legendary status as a designer, combined with the company's award-winning heritage and commitment to exceptional servicing, positions EAR Yoshino as a boutique manufacturer for those seeking the finest in analog and valve-based audio reproduction.
See all EAR Yoshino listings on RADAR.
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