I used these headphones mainly in my car with my iphone.
The sound is very similar to the Koss Porta Pro which is of high quality.
The only problems I had is with the headband that broke one day while wearing it in a very low temperature, around -10deg,C after flexing it maybe too much. I glued it back and continued using the headphones. 6 months later the microphone started functioning intermittently.
The main objection I have is with the wires coming out from each ear cup which tend to mangle a lot each time you remove them and wear them back, which probably caused the problem with the microphone.
I wish Koss comes up with this same model but with the cable coming out from just one side of the ear cup, then these will be perfect.
I have made a heavy duty usage of these headphones but I am sure in a normal indoor or light outdoor usage these headphones will last a long time and they sound very good.
Review by Jack Allan /
(Posted on 2/9/2021)
My First Ever Proper headphones.
Overall
Before this I was using the Anker Soundcore Spirit X2(still use them for working out).Then I got these, holy damn sounds so much more balanced. The clamping force wasn’t as bad. Bass is present(especially on guitars), mids and highs are nice, and sometimes when I listen to music that I usually listen to, I could hear things that I could not with my x2s! Its amaizing. Imma get the ksc75 in the near future.
Review by Amirul D /
(Posted on 9/6/2020)
You can't touch this.
Overall
For $30 there is no way this can't be 5-stars. Spacious soundstage and easy listening, very full frequency response, light as a feather, and fun. Not quite as detailed as the PortaPro, but similar in character.
Review by Set /
(Posted on 8/18/2020)
BLOWN AWAY!!!!!!!!
Overall
I bought these on Drop after all the great reviews I've heard. For $20 I was skeptical as to how good can these possibly be.I plugged them into my PC and was like, Am I Dreaming??? How did they do this? Okay, so then let me see how they sound through my Amp and Dragonfly. BLOWN AWAY!!!!!!!! and So Will You!!!
Review by NYCJim57 /
(Posted on 8/14/2020)
Incridible value and sound quality
Overall
they sound better than my $300 headphones! the only issue I have had (the reason it is 4 stars) is because something in the left earphone is a bit loose and rattles a bit.
Review by BenK /
(Posted on 8/10/2020)
Incredible sound, great for calls too
Overall
These sound (and look!) so much better than the more expensive headphones I had previously bought. The sound is rich and warm, and voice/video calls are crystal clear. I use these for both music and calls all day long, and they're wonderful. The only ding against these is that they can get tight on the ears after a few hours—especially if you wear glasses. For the price they cannot be beat.
Review by Bernie /
(Posted on 7/22/2020)
My favorite headphones!
Overall
I own 3 expensive headphones (AKG & Sennheiser). I saw an ad for the KPH30i and bought them, as I found my expensive phones hot, uncomfortable and difficult to use in bed. Wow, from the first listen I was hooked on these Koss phones. I compared them to my other phones, and liked these Koss phones best. First, they sound balanced from top to bottom frequencies, with an articulate midrange. These phones actually present an accurate soundstage! They're comfortable, and I can listen for hours without fatigue. I've purchased a second pair, and find the KPH30i to be my go-to phones. I highly recommend these phones! These are the best bargain in high end audio!
Review by Dave500 /
(Posted on 2/26/2020)
A warm and natural sound.
Overall
And a good reminder that headphones do not have to be fancy or expensive to sound decent.
Review by stalepie /
(Posted on 1/20/2020)
Comfort, sound & price
Overall
Very comfortable light weight headphones with great sound for 30 bucks - the flexible earpiece mount is comprised of an elastomeric material and patented by Koss - US10136210
Review by Eric /
(Posted on 1/19/2020)
Great
Overall
just great feel and sound
Review by Franky Knucles /
(Posted on 11/12/2019)
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John C. Koss, Founder