Koss KPH14K Side Firing Headphone (Black)

The Original American Stereophone Company: Revolutionizing Personal Audio

In 1958, John C. Koss changed the way the world listens to music when he invented the world's first SP/3 stereophone. Koss sought to replicate the excitement of live musical performances, allowing listeners to experience sound like never before and bringing them closer to the music they love. This dedication to accurate sound reproduction has earned Koss the reputation as the "Sound of Koss" among music lovers worldwide.

The Birth of the Stereophone Before the world's first SP/3 stereophone in 1958, Koss had developed a portable stereo photograph player with side-wing speakers. In 1958, Koss invented the groundbreaking SP/3 stereophone, introducing personal stereo audio to the world. In 1960, Koss released the SP/3X, a lighter, more comfortable, and better-sounding successor to the SP/3.

Pioneering Professional Headphones In 1970, the Pro/4AA set the standard for full-size professional headphones, delivering true full-frequency performance. This was followed by the HV/1A in 1974, the first dynamic headphone capable of reproducing all 10 audible octaves.

Iconic Headphone Designs The acclaimed Porta Pro, released in 1984, set performance and comfort standards worldwide for decades. In 1989, the JCK/300 Kordless Headphone system set the standard for infrared wireless headphones. Koss's revolutionary ESP/950 electrostatic headphones, introduced in 1990, brought breakthrough high-fidelity sound.

Continuing the Legacy In 2014, the Pro4S Studio Headphone was specifically designed for audio professionals, carrying on the legacy of the Pro/4 line. The KPH30i, released in 2017, featured an ultra-light weight design with remarkable high-fidelity sound.

Embracing the Future In 2021, Koss introduced the Utility Series, featuring three new headphones with Lightning, USB-C, and 3.5mm connectivity. And in 2023, Koss continued its evolution of wireless headphones with the TWS250i True Wireless Earbuds.

Koss Fit Series: Designed for Active Lifestyles Koss Fit Series headphones, such as the KPH14, are specifically designed for fitness and active lifestyles. With an ultra-lightweight design, sweat resistance, and a durable cord, these headphones are the perfect fitness partner. The unique side-firing design provides important ambient awareness, while the adjustable headband ensures a comfortable and secure fit. Available in a wide array of colors, the Koss Fit Series allows users to express their personal style.

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