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Unique sportclip design fits around ear to eliminate headband. Dynamic element design for deep bass. Frequency response: 60hz-20khz straight dual-entry 4′ cord with l-shaped 3.5Mm mini-plug product di
Is this worth €175 for a basic Koss clip-on? Not really: against the recent used market anchor of €35 median and €130 at the 75th percentile, this asking price is clearly ambitious, sitting well above the usual range for this sort of entry-level Koss headphone.
The upside is that Koss clip-ons are liked for their lightweight comfort, simple no-fuss build, and easy replaceability, so a clean, working pair can still be handy for casual use or as a spare. But at this price, the buyer should want something special—mint condition, original packaging, or a genuinely uncommon variant—because otherwise the value case is thin.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Koss Corporation traces its roots to 1953 in Milwaukee, Wisconsin, where founder John C. Koss launched the J.C. Koss Hospital Television Rental Company with just $200, repairing and renting TVs to patients. The pivotal shift came in 1958 when Koss, partnering with engineer Martin Lange Jr., invented the world's first high-fidelity stereo headphones—the SP/3 stereophone—as part of a portable phonograph. This breakthrough birthed personal stereo listening, catapulting the brand from a modest TV rental outfit to an audio pioneer with deep Midwestern heritage.
Koss specializes in headphones, from its iconic full-size Pro/4AA professional models introduced in 1970 to the enduring Porta Pro portable headphones launched in 1984, which blended superior sound, comfort, and lightweight design. While not venturing into amplifiers, speakers, turntables, DACs, or cables, the brand has consistently focused on dynamic, noise-isolating headphones that prioritize musical fidelity over fleeting trends.
Renowned for its vintage appeal and collector status among hi-fi enthusiasts, Koss occupies a niche mid-tier position, emphasizing timeless engineering and value-driven performance rather than high-end luxury or mass-market flash. Its family-owned structure—controlled by the Koss family—and Milwaukee roots underscore a commitment to authentic audio heritage, sustaining loyalty in a market dominated by coastal giants.
See all Koss listings on RADAR.
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