How Koss Changed Headphones Forever in 1958 by inventing the first Stereo Headphones

We take a brief look at the history of headphones, and how John C. Koss changed the world with his SP/3 Headphones in 1958. The world's first stereo headphones
Links for my measurement graphs:
IEMS: suporsalad.squig.link/
Headphones: suporsalad.squig.link/headpho...
Contact me by email at: [e-mail]
Twitter/X: SideSaladAudio
Support the channel on Patreon:
/ sidesaladaudio
References:
koss.com/en-ca/products/sp-3
koss.com/blogs/stories/headph...
koss.com/blogs/stories/profil...
www.smithsonianmag.com/arts-c...
en.wikipedia.org/wiki/Headphones
theconversation.com/electroph...
#vtuber #history #headphones #audiophile #audio

[@Lord_Mad_Dog]

i love that youre looking at a piece of history like this because theres a pretty big gap in the knowledge of audiophiles vs the history of their hobby

[@sidesaladaudio]

I really find this stuff interesting! There are a few different written articles that talk about the series of events, but I haven't seen much on CZcams talk about the history of headphones.

[@Unlucky1776]

@@sidesaladaudiorare to see history of this hobby but whenever there is a video on it it’s usually pretty interesting

[@GadgetryTech]

Super underrated channel. Great content as always man! More people need to see your videos.

[@sidesaladaudio]

Thanks!

[@radioactivehalfrhyme]

Great work! I’m so glad you managed to measure the SP3X. The midrange is surprisingly even. The genes of later Koss on-ears are definitely in place there.

[@Boojakascha]

I have two SP-3 (the slash nomenclature wasn't introduced until the SP/3XC (dark brown), which started to be sold as SP-3XC but was later sold as SP/3XC. Koss later retconned the name)
Love them :D I like to watch old TV series with them on. Like spy movies & shows and such. "It takes a thieve" or "Mission Impossible". They really shine with old music.

[@sidesaladaudio]

Oh cool. I didn't know the name was retconned, but that makes sense with the discrepancies in the name.

[@redgopnik2227]

lmao wait that SP3X graph looks really solid, even compared to modern day gear

[@Lord_Mad_Dog]

because audio quality isnt this flexible thing that new tech can improve and its all just marketing lol

[@sidesaladaudio]

It really doesn't sound all that bad, (for the range that it does play well)

[@SlavJerry]

we need more headphone history

[@AudioSmithSword]

Great video Sir! I really appreciate all the work you went through and information you provided here.

[@sidesaladaudio]

Thanks!

[@chocothechip]

wow :o

[@CammyFi]

That face tracking is criminal

[@sidesaladaudio]

My glasses are messing it up 😭

[@CammyFi]

​@@sidesaladaudiobru

[@CammyFi]

Speakers are 😳

[@neandrewthal]

Why does each eye keep winking/blinking independently? you ok?

[@sidesaladaudio]

I'm using a more advanced face tracking software, but my glasses are messing up the eye tracking. Lol
Still working on that

[@orekun_]

Interesting and informative, nice work.

[@CoolyOh]

John Koss sounds like a made up name lol