Koss Pro4S Headphones Discussions | Drop

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Koss Pro4S Headphones

Audiophile

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Koss Pro4S Headphones

Enginepartsguy

Jan 3, 2018

I purchased a pair of these from Amazon from their Warehouse Deals for about $85. My girlfriend ran over the headphone cord with a vacuum cleaner. Threw the mangled cord away and contacted Koss to purchase a new cord. They don't sell the cord. ( Ought to as an accessory, nice cord) they said to return the headphones, I told them that I threw away the cord. They just said to return the cans with a check for $9.00. I did that, didn't return the case. Two weeks later I received a brand-new pair in plain brown box packaging. So I ended up with two cases. These are a wonderfully comfortable pair of headphones that need at least 50 to 100 hours to break them in. They don't sound good at all until broken in properly. I truely love these phones, well made, comfortable and extremely great sounding. They sound awesome on my Schiit Valhalla 2 headphone amp, much better than being fed from the headphone jack on my HK3490 receiver.

raketen1337

Feb 3, 2018

EnginepartsguyThere's no such thing as breaking in speaker elements though.

Vengeance

Feb 5, 2018

raketen1337IKR.

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Annndy

Feb 6, 2018

raketen1337I am no great proponent of the dark arts when it comes to audio, but I think there are objective tests that show certain audio equipment, even headphone drivers/speaker elements, do indeed "break in" or "burn in" with use. I don't know if these would be one of the models that benefit from burn-in, but I think it's possible. Certainly a lot of perceived "burn-in" is really just people getting used to the sound and then liking it better, but here is a video that seems to confirm that burn-in can make a difference in the sound, at least on certain headphone models.

https://www.youtube.com/watch?v=8jxdOEpiCTs

Vengeance

Feb 6, 2018

AnnndyLol, thx.

Strongdoctor

Feb 7, 2018

AnnndyCompletely pointless video. They said they wanted to do a double-blind test, but it isn't even a regular blind test.

Annndy

Feb 7, 2018

StrongdoctorIt's true that they could not do a double-blind test. If you trust the measures they took to try to prevent the tester from knowing ahead of time which headphone was which, I think it shows that at least in this case he really could tell the two apart, but I must concede that I can think of at least three alternate reasons for that other than "burn-in."

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