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valve amplifier ART AUDIO Diavolo II  silver reference 300B monoblocks
Art Audio 8 views

valve amplifier ART AUDIO Diavolo II silver reference 300B monoblocks

USD$12,137 GBP$9,000
Location
GB
Seller
emporiumhifi
Source
eBay UK
Posted
5 Aug 2026
Last seen
1d ago

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Our Thoughts RADAR AI

Compared with the obvious alternative at this level — a strong used monoblock pair around the £2,228 median — £9,000 is firmly ambitious and sits well above the £4,264 75th percentile. That only makes sense if this is a genuinely special example with standout condition, provenance, or extras; on the face of it, the asking price is far beyond the normal used market for these listings.

The upside is that this is the sort of Art Audio piece people buy for its big, richly textured 300B presentation and proper hi-fi pedigree: the appeal is more about scale, tone, and dimensionality than raw clinical power. If it’s complete, carefully maintained, and genuinely original, it could still be a rewarding ownership move — but at this price I’d want very strong evidence of service history, cosmetic condition, and exactly what’s included before treating it as anything other than a premium ask.

Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.

About Art Audio

# 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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