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Ambitious: at £7,000, this sits well above the typical used range in your database, clearing the £3,226 75th percentile by a wide margin. Even allowing for the upgraded twin PSU and Kondo wiring, the ask reads as premium rather than bargain territory.
That only makes sense if the unit is exceptionally clean, fully sorted, and documented, because this is the kind of 300B amp people buy for its big, fluid midrange, tactile tone and naturally expansive presentation. The upgrades may add real appeal for a careful buyer, but at this price I’d want strong proof of provenance, service history, and exactly what the work changed before treating it as a serious buy.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
# Art Pro Audio Brand Description
Applied Research and Technology (ART) was founded in Rochester, New York, by a team of five engineers—Phil Betette, Tony Gambacurta, John Langlouise, Richard Neutrour, and Terry Sherwood—who previously collaborated at the legendary effects pedal manufacturer MXR. The company emerged from a philosophy of engineering excellence and practical design, prioritizing reliability and affordability over unnecessary complexity. This heritage of precision and innovation has defined ART's trajectory since its inception.
ART initially established itself in the professional recording market, launching with digital reverb units that set the tone for the company's technical focus. The brand achieved widespread recognition with the Tube MP, released in 1995, which became their signature product and remains central to their identity. The company has maintained a strong presence in professional audio equipment, particularly in signal processing and tube-based preamp technology, serving both studio professionals and discerning home audio enthusiasts.
ART occupies a distinctive position as a mid-tier to professional-grade manufacturer with particular strength among recording engineers and vintage audio collectors. The brand is respected for engineering integrity and sonic character rather than mass-market appeal, positioning itself as a specialist choice for those seeking transparent, reliable equipment with genuine tube circuitry. Their reputation rests on decades of consistent product performance and a loyal following among audio professionals who value substance over marketing.
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audio-markt.de
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eBay UK
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eBay UK
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eBay UK
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eBay US
