Koss Headphones

Just why do you suppose your customers all want Koss?

Well, it looks like a couple of important things happened in 1958. I was born on May 14th and John Koss teamed up with engineer Martin Lange, Jr. to develop a portable stereo phonograph player with side-wing speakers.

One of the product’s unique features was a privacy switch, which allowed listeners to hear music by plugging in the world’s first SP/3 stereophone. The stereophones were intended to be an accessory to demonstrate the high-fidelity stereo sound that the portable phonograph player delivered.

They demonstrated this new set-up at a Milwaukee, Wisconsin audio show. The revolutionary sound of the Koss SP/3 stereophones became the hit of the show. Koss sought to replicate the excitement of a live musical performance. The original SP/3 stereophone allowed listeners to experience sound as they had never before, bringing them closer to the music they love. Prior to this time, headphones had only been used for communications purposes.

In the early 70s, Koss pioneered the high-end “electro-static” “ES series” headphone market. These headphones set the standard for wide-range frequency response. Being very durable, they required service for wear and tear on cords and ear pads.

in 1966 Koss came out with the Beatles Headphones. These are blue custom over-the-ear stereo headphones. The Koss Beatlephones were nothing more than an average set of headphones with Beatle photo stickers but they sold out globally and remain one of the most sought-after bits of Fab Four memorabilia.

The Pro 4 AA Stats

  • frequency response – 10Hz – 25kHz
  • impedance – 8 – 16 Ohm
  • cable length – 3 m
  • weight 650 grams
  • year of production 1975
  • made in the USA

The 1974 Koss ESP-9 electrostatic headphones construction is typically top-of-the-line Koss: rugged, nicely finished, and apparently very durable, and the phones are easy to handle. They have a very effective rejection of outside sounds, which makes them ideal for monitoring on-location live-recording sessions.

The Koss JCK/300 Kordless Stereophone System in 1989 was a nifty idea and worked if you remained within line-of-sight of the transmitter and moving caused sound degradation. The QZ1000



Author: Doyle

I was born in Atlanta, moved to Alpharetta at 4, lived there for 53 years and moved to Decatur in 2016. I've worked at such places as Richway, North Fulton Medical Center, Management Science America (Computer Tech/Project Manager) and Stacy's Compounding Pharmacy (Pharmacy Tech).

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