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These are the KEF LS50 Anniversary Model bookshelf speakers — the original 2012 release that launched the LS50 line and quickly became one of the most acclaimed compact monitors of the last decade. This is the version with the distinctive Uni‑Q driver and the original cabinet design that reviewers praised for its imaging precision, coherence, and wide sweet spot.This pair is in very good condition, fully functional, and has been well cared for in a non‑smoking environment. The Uni‑Q drivers are perfect, and the cabinets show only light, normal wear. They have been double boxed ready to ship.Key FeaturesOriginal 2012 LS50 Anniversary ModelKEF’s celebrated Uni‑Q coaxial driverExceptional imaging and soundstageRigid, low‑resonance cabinet designIdeal for desktop, nearfield, or small‑to‑medium roomsWorks well with a wide range of amplifiersConditionVery good overallDrivers perfectLight cosmetic wear onlyFully functionalShipping / PickupShipping available (single box)Local pickup in Kirkland, WALocal delivery within a short drive is possible
Unknown condition on this used Kef LS50 at USD725 nudges it toward the lower end, but without details it's a cautious pass-up. Against our recent comps—median USD893, with 25th percentile at USD737 and 75th at USD966—this sits just below fair market, hinting at potential value if it's clean. Typical used LS50s in good shape trade USD750-1000, so it could be a mild bargain absent major flaws, but the opacity demands scrutiny.
Buyers, prioritize verifying driver integrity—those Uni-Q mids/tweeters can foam-surround degrade over 10+ years, muddying the famed coherence. Confirm original grilles, spikes, and ports are included; missing bits erode resale. Probe for cosmetic dings or cabinet resonance, and insist on recent photos or a listen to catch any port noise or crossover fatigue.
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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