{"title":"Koss","description":null,"products":[{"product_id":"koss-hv-1a-headphones-legendary-very-rare-vintage-1974-refurbished-good-look","title":"KOSS HV 1A Headphones LEGENDARY Very Rare Vintage 1974 Refurbished Good Look","description":"\u003cp\u003e\u003cb\u003eKOSS HV 1A Headphones LEGENDARY Very Rare Vintage 1974 Refurbished Good Look\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eThe State of the Art!!!\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eIn 1974, Koss released the HV\/1A. The first dynamic headphone capable of reproducing all 10 audible octaves, the HV\/1A paved a new course in personal listening. The unmatched sound, and modern dynamic speaker elements found in Koss Headphones today are a direct evolution from the legendary HV\/1A.\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eDecilite driver elements reproduce all 10 audible octaves. Hear-thru design with acoustically open ear cushions and listening. Reticulated foam ear cushions provide hours of comfortable self-adjusting yokes. Adjustable brushed aluminum headband with self-adjusting yokes.\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSpecification Icon 15-30,000 Hz\t\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSpecification Icon 157 ohm 1kHz\t\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSpecification Icon 100 db SPL\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSpecification Icon 10 foot\t \t \u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eKEY FEATURES:\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eDecilite driver elements reproduce all 10 audible octaves\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eHear-thru design with acoustically open ear cushions and listening\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eReticulated foam ear cushions provide hours of comfortable self-adjusting yokes\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eAdjustable brushed aluminum headband with self-adjusting yokes\u003c\/b\u003e\u003c\/p\u003e","brand":"Koss","offers":[{"title":"Default Title","offer_id":50191037628758,"sku":"EB-335467512627","price":349.99,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0907\/0359\/3814\/files\/57_a9ab5fcd-849b-453d-9cc6-ec754d196f76.jpg?v=1744061084"},{"product_id":"koss-pro-4aaa-professional-headphones-vintage-1975-rare-original-box-work-good","title":"KOSS PRO 4AAA Professional Headphones Vintage 1975 RARE Original BOX WORK GOOD","description":"\u003cp\u003e\u003cb\u003eKOSS PRO 4AAA Professional Headphones Vintage 1975 RARE with Original BOX WORK GOOD LOOK!\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eThe Koss Pro 4AAA are high-fidelity studio headphones that were popular in the 1970s and 1980s, especially among audio professionals. Here are their technical specifications:\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\t•\tType: Closed-back, circumaural headphones\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\t•\tFrequency response: 16 Hz – 22 kHz\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\t•\tImpedance: 250 ohms\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\t•\tSensitivity: Approximately 95 dB SPL\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\t•\tDriver: Dynamic with Mylar diaphragm\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\t•\tConnector: 6.3 mm (1\/4’’) jack\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\t•\tCable: Coiled, single-sided\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\t•\tWeight: Approximately 620 g\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eThey are known for their sturdy construction and accurate sound, although their weight and high impedance may require a powerful amplifier to fully utilize their potential.\u003c\/b\u003e \u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eKOSS PRO4AAA  Auriculares Profesionales para Estudio PRO4AAA Vintage 1975, garantía de la fábrica de por vida. Considerado uno de los Headphones mejores del mundo.\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003ea Vintage Original KOSS Pro-4AAA Studio Quality Headphones.\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eThese headphones with little wear and still sound great.\u003c\/b\u003e\u003c\/p\u003e","brand":"Koss","offers":[{"title":"Default Title","offer_id":50191087993174,"sku":"EB-233438819186","price":699.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0907\/0359\/3814\/files\/s-l1600_4e3ab5cc-a414-4c0b-886d-16cc256a49b5.jpg?v=1744061780"},{"product_id":"koss-pro4aa-professional-headphones-pro-4aa-very-rare-vintage-1970-with-good-box","title":"KOSS PRO4AA Professional Headphones PRO 4AA Very Rare Vintage 1970 With Good Box","description":"\u003cp\u003eKOSS PRO4AA Auriculares Profesionales  PRO 4AA Muy Raro Vintage 1970 With original  Box\u003c\/p\u003e\u003cp\u003e\u2028\u003c\/p\u003e\u003cp\u003eKoss Pro4AA headphones set the standard for full size professional headphones. They were introduced in 1970 as the first dynamic headphones to deliver true full frequency and high fidelity performance with impressive noise isolating capabilities. \u003c\/p\u003e\u003cp\u003e\u2028\u003c\/p\u003e\u003cp\u003eRetired in the late '80s, Koss swiftly returned the Pro4AA headphones to its product lineup due to overwhelming popular demand. They have since remained a staple of studio headphones in the radio and recording industries. \u003c\/p\u003e\u003cp\u003e\u2028\u003c\/p\u003e\u003cp\u003eKoss Pro4AAs meet the stringent demands of broadcast and recording professionals who require reliable equipment and superior performance. The full size professional headphones keep unwanted sounds out while letting every note in. \u003c\/p\u003e\u003cp\u003e\u2028\u003c\/p\u003e\u003cp\u003eWhether you're a sound professional or an audiophile, Pro4AAs deliver superior isolation, accurate reproduction and sound intensity, and the excitement of a live performance with every recording. Connecting with your music has never sounded so good.\u003c\/p\u003e\u003cp\u003e\u2028\u003c\/p\u003e\u003cp\u003eFeatures\u003c\/p\u003e\u003cp\u003eNoise isolating professional studio headphones\u003c\/p\u003e\u003cp\u003eThe first dynamic headphones to deliver true full frequency, high fidelity performance\u003c\/p\u003e\u003cp\u003eStandard-setting design incorporates performance-enhancing technology\u003c\/p\u003e\u003cp\u003eSuperior isolation, accurate sound reproduction and the excitement of a live performance\u003c\/p\u003e\u003cp\u003eDurable steel and generously padded rubber headband\u003c\/p\u003e\u003cp\u003eAdjustable slide bars ensure snug fit\u003c\/p\u003e\u003cp\u003e8 foot coiled cord with 6.3 mm (1\/4\") plug\u003c\/p\u003e\u003cp\u003eSPECIFICATIONS \u003c\/p\u003e\u003cp\u003eFrequency Response: 10-25,000 Hz\u003c\/p\u003e\u003cp\u003eImpedance: 250 ohms\u003c\/p\u003e\u003cp\u003eSensitivity: 95dB SPL\/1mW\u003c\/p\u003e\u003cp\u003eCord: Coiled, Single Entry, 10ft\u003c\/p\u003e","brand":"Koss","offers":[{"title":"Default Title","offer_id":50191090024790,"sku":"EB-233865000056","price":265.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0907\/0359\/3814\/files\/57_c33f4a2e-6005-4888-8bdd-9cabe0b159bc.jpg?v=1744061805"},{"product_id":"koss-pro-4aaa-plus-professional-headphones-vintage-1975-rare-work-good-look","title":"KOSS PRO 4AAA Plus Professional Headphones Vintage 1975 RARE WORK GOOD Look","description":"\u003cp\u003e\u003cb\u003eKOSS PRO 4AAA Plus Professional Headphones Vintage 1975 RARE WORK GOOD LOOK!\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eThe Koss Pro 4AAA are high-fidelity studio headphones that were popular in the 1970s and 1980s, especially among audio professionals. Here are their technical specifications:\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\t•\tType: Closed-back, circumaural headphones\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\t•\tFrequency response: 16 Hz – 22 kHz\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\t•\tImpedance: 250 ohms\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\t•\tSensitivity: Approximately 95 dB SPL\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\t•\tDriver: Dynamic with Mylar diaphragm\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\t•\tConnector: 6.3 mm (1\/4’’) jack\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\t•\tCable: Coiled, single-sided\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\t•\tWeight: Approximately 620 g\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eThey are known for their sturdy construction and accurate sound, although their weight and high impedance may require a powerful amplifier to fully utilize their potential.\u003c\/b\u003e \u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eKOSS PRO4AAA  Auriculares Profesionales para Estudio PRO4AAA Vintage 1975, garantía de la fábrica de por vida. Considerado uno de los Headphones mejores del mundo.\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003ea Vintage Original KOSS Pro-4AAA Studio Quality Headphones.\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eThese headphones with little wear and still sound great.\u003c\/b\u003e\u003c\/p\u003e","brand":"Koss","offers":[{"title":"Default Title","offer_id":50191105425750,"sku":"EB-235973339761","price":599.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0907\/0359\/3814\/files\/s-l1600_3c561062-7703-465a-9ec5-6a97f9ec010a.jpg?v=1744061968"},{"product_id":"koss-hv-1lc-professional-headphones-vintage-1974-rare-original-work-good-look","title":"KOSS HV 1LC Professional Headphones Vintage 1974 RARE Original WORK GOOD Look","description":"\u003cbr\u003e\u003cp\u003e        \u003cb\u003eKoss HV-1LC Vintage Stereo Headphones 1974 – Audiophile Classic – Excellent Condition\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eKoss HV-1LC High Velocity Stereo Headphones (1974) – Legendary American Hi-Fi Classic.\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eOffered here is a beautiful pair of original Koss HV-1LC vintage stereo headphones, one of the most iconic models from the golden age of American high-fidelity audio.\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eManufactured in the mid-1970s, the HV-1LC was designed to deliver an exceptionally natural and spacious listening experience, becoming highly respected among audiophiles and music enthusiasts worldwide.\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eThis example is in excellent cosmetic and fully functional condition, carefully inspected and tested to ensure outstanding performance.\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eThe sound is warm, detailed and musical, with rich midrange reproduction, smooth highs and surprisingly open soundstage characteristics that made the HV series famous.\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eThe integrated Level Control (LC) system allows convenient adjustment directly from the headphones, a premium feature for its era.\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eAll drivers operate perfectly, with balanced output on both channels and no distortion or unwanted noises.\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eThe headset remains comfortable thanks to its lightweight construction and classic ergonomic design.\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eA superb opportunity for collectors, vintage audio enthusiasts, recording studio displays or anyone seeking the authentic sound signature of 1970s American hi-fi.\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003e* Manufacturer: Koss Corporation, USA\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e* Model: HV-1LC\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e* Year: 1974\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e* Type: Dynamic Stereo Headphones\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e* Frequency Response: 20 Hz – 20 kHz\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e* Impedance: Approx. 100–140 Ohms\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e* Sensitivity: Approx. 95 dB\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e* Integrated Level Control\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e* Weight: Approx. 260 g\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e* Cable Length: Approx. 3 m\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eDimensions \u0026amp; Weight\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003e* Width: Approx. 18 cm\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e* Height: Approx. 21 cm\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e* Depth: Approx. 8 cm\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e* Weight: Approx. 260 g\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eThese headphones will be supplied exactly as shown in the photographs.\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eImportant Note\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003ePurchasing from TechnoGold Audio \u0026amp; Vintage Marbella means acquiring equipment from one of Europe’s leading vintage audio specialists. With more than 40 years of experience in classic hi-fi, every item is carefully inspected, tested and professionally prepared before shipment. We maintain over 1,500 vintage audio components in stock and ship worldwide using FedEx, DHL, UPS and other premium carriers. Buy with complete confidence from a trusted specialist in rare and collectible audio equipment.\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e        \u003c\/p\u003e","brand":"Koss","offers":[{"title":"Default Title","offer_id":54174690967894,"sku":"EB-336616399119","price":530.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0907\/0359\/3814\/files\/57_9e23b514-930c-4566-a3e1-d892b59160d6.jpg?v=1781263331"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0907\/0359\/3814\/collections\/s-l1600_4e3ab5cc-a414-4c0b-886d-16cc256a49b5.jpg?v=1791752466","url":"https:\/\/www.audiovintageshop.com\/en\/collections\/koss.oembed","provider":"TechnoGold Audio \u0026 Vintage","version":"1.0","type":"link"}