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I’m offering these amazing headphones! They’re in an amazing shape, only the model number on one of the cups is not visible anymore. One of the best headphones for mixing and mastering ever created.
US$112 is a fair, slightly ambitious ask for a used AKG K612 Pro, sitting just above the US$100 median of recent comparable listings. While it exceeds the 25th percentile (US$96) and nudges past the 75th percentile (US$106), it remains within a realistic used range and isn’t a outright bargain, but still a reasonable entry point for this well-regarded model.
The K612 Pro is a favorite for its neutral, open-back sound, large soundstage, and excellent value in studio monitoring and hi-fi listening. It pairs well with modest amplifiers thanks to its 120-ohm impedance and delivers low leakage for quiet environments. If this listing includes original earpads and shows no signs of headband wear or loose fit issues—common in older units—it’s a solid buy for a fellow enthusiast looking for reliable, natural sound without paying new prices.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
AKG traces its roots to post-war Vienna, Austria, where physicist Dr. Rudolf Görike and engineer Ernst Pless founded Akustische und Kino-Geräte Gesellschaft m.b.H. in 1947. Emerging from the ruins of World War II, the duo initially supplied cinemas with loudspeakers, film projectors, and light meters, handcrafting products in a modest basement with just five employees. Rapid expansion followed, as AKG ventured into car horns, intercoms, and carbon microphone capsules, quickly gaining traction with radio stations, theaters, and jazz clubs across Europe.
The brand's product focus sharpened on professional audio excellence, pioneering headphones in 1949 and achieving global acclaim with the D12 microphone in 1953, which set standards for voice transmission. AKG became renowned for high-fidelity microphones, including iconic models like the C12 tube mic, alongside headphones, wireless systems, and phonograph cartridges. While early diversification included cinema gear, the company honed in on studio-grade transducers and monitoring tools, later incorporating digital wireless tech.
Today, under Harman International (a Samsung subsidiary since 2017), AKG holds a commanding position as a pro-audio powerhouse, favored by engineers, performers, and broadcasters for its precision and reliability. It bridges mid-tier accessibility with high-end heritage, appealing to discerning hi-fi buyers seeking reference-quality headphones and mics that deliver uncolored, transparent sound— a legacy of Austrian engineering that remains a studio staple worldwide.
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