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Te koop: 2 stuks kef bd139 (sp1042) passieve radiator. Wordt gebruikt in de kef cadenza, calinda, 104, 104ab en 104ab kit luidsprekers. Prijs: € 99
€99 is a strong buy if these are complete and working; used KEF 104/2 examples commonly sit around €500-€700, with cleaner or restored pairs higher, so this is well below the usual market for the model. At that level, you’re paying bargain money for a speaker that can still look like a serious score.
The appeal is the classic KEF midrange and imaging: these are well-known for a smooth, spacious presentation and proper scale from a big, old-school floorstander. The main thing to check is condition—on a vintage design like this, make sure the drivers are all present, the bass units are healthy, and there’s no obvious cabinet or foam trouble before you jump.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
KEF traces its roots to 1961, when British engineer Raymond Cooke founded the company in a modest Nissen hut on the grounds of the Kent Engineering and Foundry in Maidstone, England. A former BBC engineer and Wharfedale veteran, Cooke was driven by a passion for music and a commitment to technological innovation, aiming to reproduce sound as faithfully as the original performance. From its inception, KEF pioneered materials like foil-stiffened polystyrene diaphragms and Melinex tweeters in its debut K1 loudspeaker, setting a benchmark for engineering precision that propelled the brand to early acclaim.
KEF has long specialized in loudspeakers, establishing itself as a leader with iconic innovations such as the Uni-Q coaxial driver and computer-aided design techniques that revolutionized driver and enclosure development. While drive units supplied to other manufacturers fueled its growth, the brand's core output remains high-fidelity speakers across categories like floorstanders, bookshelves, and home theater systems, including early THX-approved setups. Active wireless models and reference-grade series extend its portfolio, though it eschews amplifiers, turntables, DACs, headphones, or cables.
Renowned for its science-driven heritage, KEF occupies a premium position in the hi-fi market, blending accessible high-end performance with cutting-edge technology. Collectors prize vintage BBC monitors and Bextrene-driver classics, while modern buyers seek its precise, natural soundstaging. Decades of awards affirm KEF's status as a respected innovator, appealing to discerning audiophiles who value engineering over hype.
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