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Infinity Reference Loudspeakers
Infinity 8 views

Infinity Reference Loudspeakers

USD$174 EUR$150
Location
Steenwijk, NL
Seller
Robert
Source
Marktplaats
Posted
20 Aug 2026
Last seen
2d ago

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Seller's Description

Ter overname: infinity reference 51i staande luidprekers zwart essen fineer 3-weg basreflex 6 ohm made in denmark voor versterkers 2 x 25 watt tot 2 x 150 watt foamranden in perfecte staat alles werkt

Our Thoughts RADAR AI

Is this a clean pair with working drivers and original parts, or am I buying into hidden repair risk? At €150, it lands right on the market’s median for recent comparable EUR listings, so the asking price is fair rather than a steal or a stretch.

That makes it a sensible buy if the speakers are complete and cosmetically decent, especially since Infinity Reference models are generally well liked for lively, open sound and solid value in the used market. The upside here is getting a respected vintage line at an ordinary price; just verify the surrounds, tweeters, and any crossover or cabinet issues before committing, since age-related wear matters more than the sticker when the price is this close to normal.

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

About Infinity

Infinity emerged in 1968 from a Woodland Hills, California garage, founded by Arnie Nudell, John Ulrick, and Cary Christie. Driven by Nudell's passion for classical music and innovative engineering, the trio launched with the groundbreaking Servo-Statik speaker system, featuring electrostatic panels paired with a servo-controlled woofer derived from defense technology. This American brand quickly gained traction through pioneering materials like neodymium magnets, mylar diaphragms, and polypropylene cones, establishing a legacy of pushing audio boundaries before acquisitions by Electro Audio Dynamics in 1974 and Harman International in 1983.

The company has long focused on loudspeakers as its hallmark, from early electrostatic hybrids and the iconic Reference and Kappa series to later EMIT and EMIM drivers in the 1970s. While primarily a speaker specialist, Infinity has ventured into home and mobile audio, including amplifiers and systems under Harman ownership, now part of Samsung since 2017. Turntables, DACs, headphones, and cables remain outside its core expertise.

Positioned as a mid-tier powerhouse with high-end aspirations, Infinity commands respect among knowledgeable buyers for its vintage collector appeal and enduring innovations. Once a darling of audiophiles for transparency and dynamics, it now blends accessible performance with Harman reliability, appealing to those seeking proven heritage without boutique exclusivity.

See all Infinity listings on RADAR.

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