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For sale: an excellent pair of infinity primus 300 three-way floor-standing speakers from the legendary american brand (part of the harman international group). This is a rare european-assembled model
At €150 compared to the typical €100 median for Infinity Primus 300 center speakers, this asking price sits near the market median and is fair, not a bargain. While the median is €100 according to HifiShark’s 2026 estimate based on trusted listings, the €150 price reflects a reasonable premium for a clean unit, especially if it’s in original-owner condition or includes accessories. It’s not ambitious, but it’s not a strong deal either—just a straightforward, honest market price.
This speaker is well-regarded for its balanced sound and solid imaging, making it a worthwhile buy for home theater setups seeking clarity without overspend. The Primus 300 delivers reliable performance with good bass response and clear midrange, ideal for dialogue and music. If the listing includes original accessories or is in clean condition, it’s a buying opportunity. No major caveats unless the condition is questionable or accessories are missing, which would be material at this fair price.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
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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