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Koss Porta Pro Black On-Ear Headphones, Retro Style, Collapsible Design, Case Included, Black

4.6 4.6 out of 5 stars 17,085 ratings
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$39.99 with 20 percent savings
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Color: Black
Style: On-Ear Headphone
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Brand Koss
Color Black
Ear Placement On Ear
Form Factor On Ear
Impedance 16 Ohm

About this item

  • Designed for Deep bass performance
  • Comfortable, secure fit with adjustable headband and multi-pivoting ear plates
  • Two adjustable temporal-comfort zone pads shift the pressure and perfectly balance the ear plates on your ear
  • Collapsible for maximum portability, includes carrying case
  • Connector Type: 1 x headphones (mini-phone stereo 3.5 mm).Frequency Response - 20-17,000 Hz and Impedance - 16 ohms.Frequency Response - 15-25,000 Hz and impedence of 60ohms​.

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Koss Porta Pro Black On-Ear Headphones, Retro Style, Collapsible Design, Case Included, Black
Koss Porta Pro Black On-Ear Headphones, Retro Style, Collapsible Design, Case Included, Black
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Product Description

Porta Pro Black

Legendary Design

The acclaimed Koss Porta Pro was introduced in 1984 and continues to be one of the most recognized headphones around the world.

Porta Pro Black

Perfectly Portable

Porta Pro features a unique collapsible design for easy storage and ultimate portability.

Porta Pro LE

The Sound of Koss

Koss engineered 60 Ohm drivers deliver remarkable high-fidelity audio at 15-25,000Hz producing deep bass, crisp highs and superior midrange.

Porta Pro Black

Comfort Zone

Adjustable headband and ComfortZone temporal pads provide a comfortable listening experience.

Two Classics. One Remarkable Listening Experience.

Porta Pro Black

Porta Pro Black

Looking for a modern look with a retro soul? Porta Pro black share's everything listeners love from the original, now in a sleek jet black colorway.

Porta Pro Classic

Porta Pro Classic

True to the original, Porta Pro Classic remains virtually unchanged since it's introduction in 1984 using the same 60 Ohm drivers, producing deep bass, crisp highs and superior midrange.

Porta Pro Black
Porta Pro Classic
Porta Pro Black
Porta Pro Classic

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Frequency Response 15 - 25,000 Hz
Impedance 60 Ohms
SPL 111 dB
Drivers Koss Dynamic
Cushions Foam
Connector 3.5mm
Comfort Zone Adjustable Temporal Pads
Included Porta Pro Black, carrying pouch

More Products From Koss

Porta Pro Black

Porta Pro Black

Porta Pro Wireless

Porta Pro Wireless

Porta Pro

Porta Pro

Porta Pro Limited Edition

Porta Pro Limited Edition

Porta Pro Utilitya Pro Utility

Porta Pro Utility

KPH40 Utility

KPH40 Utility

KPH30i

KPH30i

Customer Reviews
4.6 out of 5 stars 17,085
4.2 out of 5 stars 71
4.6 out of 5 stars 17,085
4.4 out of 5 stars 1,966
3.9 out of 5 stars 201
4.5 out of 5 stars 1,060
4.4 out of 5 stars 3,450
Price
$39.99 $99.99 $39.99 $49.99 $39.99 $29.99
Headphone Type
On Ear On Ear On Ear On Ear On Ear On Ear On Ear
Connection
3.5mm Bluetooth, Analog Pass Through 3.5mm 3.5mm Utility Series Utility Series 3.5mm
Utility Series
3.5mm, USB-C & Lightning 3.5mm, USB-C & Lightning
Audio Controls
Integrated Audio Controls In-Line Remote Utility Cord Remote Utility Cord Remote In-Line Remote
Microphone
Integrated Microphone In-Line Remote Utility Cord Remote Utility Cord Remote In-Line Remote
Noise Cancelling
Adjustable Headband
Yes Yes Yes Yes Yes Yes Yes
Collapsible
Yes Yes Yes Yes Yes
Carrying Case/Pouch
Carrying Pouch Soft Shell Case Carrying Pouch Hardshell Case Carrying Pouch

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  • headphones^carrying case
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    Customer reviews

    4.6 out of 5 stars
    17,085 global ratings

    Review this product

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    Customers say

    Customers are satisfied with the headphones' sound quality, value, and comfort. They find the sound punchy with some hints of bass. The headphones are described as a great value for the money, providing outstanding performance for the money. Many customers find the headphones comfortable to wear for extended periods of time without ears aching or discomfort. The headphones are lightweight, compact, and easy to carry around. Customers also like the quality, style, and functionality of the headphones. However, opinions differ on the build quality.

    AI-generated from the text of customer reviews

    3,168 customers mention "Sound quality"2,567 positive601 negative

    Customers like the sound quality of the headphones. They find it punchy with some hints of bass, and work perfectly for general use and listening. The bass frequencies are powerful waveforms that can obscure other frequencies and cancel out others.

    "light-weight and comfortable, well-constructed excellent sound great choice at this price point" Read more

    "...with complex reverb (tested with Steely Dan - Kid Charlemagne), have GREAT bass (tested with Techmaster P.E.B. - Bassgasm), great low volume..." Read more

    "...TL/DR; Awesome old school looks with amazing sound at a price point that feels like a steal! Bass may not knock your socks off but sounds great...." Read more

    "...end pairs costing up into the hundreds of dollars, but the sound quality is excellent for what these little babies do cost (my son's pair was $30)...." Read more

    1,368 customers mention "Value for money"1,276 positive92 negative

    Customers appreciate the value for money of these headphones. They find them inexpensive and providing good performance for the price. The headphones are described as value-oriented and offering great sound quality for the money.

    "...If you don’t wanna read this whole review (tl;dr) : these are worth every penny. Comfort: 3.5/5 initially, these felt weird...." Read more

    "...excellent sound great choice at this price point" Read more

    "...They are great sounding headphones and are an excellent value. Do you really put these up against other headphones that cost many times as much? No...." Read more

    "These things punch WAY above their price point; there's a reason they've been unchanged since their design in 1984. The Comfort:..." Read more

    1,247 customers mention "Comfort"996 positive251 negative

    Customers appreciate the headphones' comfort. They find the pads soft and airy, allowing for extended wear without discomfort. The lightweight design and comfortable zone settings make them easy to wear for long periods.

    "light-weight and comfortable, well-constructed excellent sound great choice at this price point" Read more

    "...response and incredible acoustic qualities of these light, comfortable headphones...." Read more

    "...They fit my head just fine and are comfortable. These things can go anywhere. They are called Porta-Pros and they can go anywhere...." Read more

    "...They are very light, compact, and are easy to wear for extended periods of time. Very light on the head...." Read more

    959 customers mention "Portable"917 positive42 negative

    Customers like the portable design of these headphones. They are lightweight, foldable, and compact. The aluminum headband has a nice padding section.

    "light-weight and comfortable, well-constructed excellent sound great choice at this price point" Read more

    "...you hear the bass response and incredible acoustic qualities of these light, comfortable headphones...." Read more

    "...They fit my head just fine and are comfortable. These things can go anywhere. They are called Porta-Pros and they can go anywhere...." Read more

    "...These headphones are smaller than you might think. They are very light, compact, and are easy to wear for extended periods of time...." Read more

    814 customers mention "Quality"789 positive25 negative

    Customers like the headphones. They say the headphones have great mids, highs, and bass. They are the best under $50 cans they've ever heard, providing years of good use. Many consider them the best open-ear headphones they've owned. The musical elements with good source components are well-received by customers. The lightweight, portable design is considered an old-school style, but still a worthwhile upgrade.

    "...They can go anywhere and they work. Gym? Fine! Backpack? They fold up. Then you unfold them and work at your desk with them...." Read more

    "...Panning sounds move around you and have a great depth to them...." Read more

    "...Their price to sound quality and their minimalist utilitarianism is probably the main reason why they have such a following...." Read more

    "...Original review: TL;DR: Excellent headphones. Lots of bass. Highs are just ok. Fun/exciting to listen to...." Read more

    780 customers mention "Style"571 positive209 negative

    Customers appreciate the headphones' retro and unique design. They find the band well-designed with two sliders that make them easy to adjust. Many customers find the sound crisp and not too loud.

    "...I appreciate the retro look of these, but there are issues: - headband is a thin metal that can tear ur hair out (use tape) -..." Read more

    "...And even if they're a bit outdated in appearance, the design is so functional you won't even give looks a second thought after you put them on...." Read more

    "...I think the aesthetics are sorta endearing: they are funky and a little retro. They fit my head just fine and are comfortable...." Read more

    "...Both of these designs have real problems when used in headphones. The third speaker enclosure design is seldom seen anymore...." Read more

    461 customers mention "Functionality"325 positive136 negative

    Customers appreciate the headphones' functionality. They find them useful and satisfying for work, with great sound quality and minimal distortion. The PortaPros are considered flimsy but suitable for everyday use. They work well when paired with smartphones and portable audio devices, as well as on-the-go laptops.

    "...; the sound curve of these little Porta Pros, and the results are amazing...." Read more

    "...won't sound as good as a pair of Samsung buds or Beats but still kick pretty well...." Read more

    "...reflex design but results in much smaller enclosures that are very inefficient and require high powered amps...." Read more

    "...The band is obviously nothing special, but it is functional and I suspect that it will resist damage fairly well, provided you aren't grossly..." Read more

    1,064 customers mention "Build quality"583 positive481 negative

    Customers have mixed opinions about the build quality of these headphones. Some find them well-constructed with sturdy cloth-covered wires and a thick metal band. Others mention that they're fragile, cheaply made, and too frail for constant folding and unfolding. The lack of a hard case also contributes to their fragility.

    "light-weight and comfortable, well-constructed excellent sound great choice at this price point" Read more

    "...Quality: 2/5 there had to be a sacrifice somewhere. The build is garbage. Let’s be honest: you can’t have it all at this price range...." Read more

    "...these you'll find near universal praise for the excellent sound and durability, with some mixed views on the aesthetics...." Read more

    "...have these Princess Leia looking cans that are connected by a pretty thick metal band...." Read more

    Great Headpones, but I recommend the Koss KPH40!
    4 out of 5 stars
    Great Headpones, but I recommend the Koss KPH40!
    I enjoyed these Headphones!For those of you who have trouble with it pulling your hair, my remedy was to wrap painters tape (blue to match the highlights on the headphones) around the middle section of the headband. It also keeps the headband the perfect length so I didn't have to constantly adjust it every time I took it off. This DOES make it less portable for pocket carry, but I never used that anyway. The temple pads were giving me migraines so I ripped them off. Then I replaced the foam earpads with the YAXI ones. Now everything is great.---MY HUNT FOR THE BEST BUDGET HEAPHONES:(I use my headphones for 80's Rock, 90's Alternative, Oldies, Classical, and plenty of TV and Movies)-SHORT VERSION...BUY THE KOSS KPH40'S AND SOME YAXI PADS!LONG VERSION...FIRST I HAD THE PX-100-i's for like 10 years. Loved them, but the connector broke a few years back. THEN I got the PX-100-ii's. I didn't like it as much as the first iteration. Way too much Bass! And the bass bled like crazy. They sounded super muddy. But everything else sounded like my old px-100's. Then a few months ago, THOSE broke at the connector (I'm nice to my headphones, they get plugged into my computer and stay there, there's really no reason for those connectors to go faulty, just bad manufacturing). Then I found out that Sennheiser was no longer making ANY PX-100's anymore, so I had some research to do...NEXT WERE THE KOSS PORTAPROShttps://www.amazon.com/gp/product/B00001P4ZH/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&th=1-The sound is 'soft' for the mids and uppers, and a slightly boomy bass. Very easy-listening. The bass was a little too boomy for my taste, but it wasn't bad. The high's weren't sibilant, which I loved. I missed some clarity from my px-100's, but it was worth it. What I didn't like about it was that the bass bled into the mids, which made some things sound weird. Still, I liked them better than my original sennheiser PX-100-i's which is saying something. The PX-100-i's have highs that are harsh on my ears, too much sibilance. The Bass on the PX-100-i's can be a little to boomy also, but no bleeding. It had an accurate, clear sound I loved. But overall I considered the Portapro's a nice upgrade.KOSS KPH30ihttps://www.amazon.com/gp/product/B075FBRYM1/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&th=1-But, I didn't like the bleeding bass of the Portapro's, so I kept hunting. I tried the Koss KPH30i's next. VERY nice. I consider them better than the Portapro's. Slightly more clarity in the highs and the bass didn't bleed. The high's were only a little more powerful than the Portapro's, pretty much had the same 'soft' sound quality I liked in the Portapro's. The bass was a little underwhelming. I could tell where the bass was meant to be, which was nice, but it wasn't boomy at all. Like HEARING the bass, but not FEELING it. At first I really appreciated that, especially for classical, but after a few days I kind of missed the bass punch of the Portapro's. The biggest problem with the KPH30i's were they were uncomfortable! The earpads are huge and they press on my ears hard. Its not just the compression strength causing it, its the flat earcups that press against the entire ear. I could only wear it for 10 min before taking them off. So I tried the Grado Ear Pad mod, put it around the earcups and it was MUCH better. Warning, do NOT remove the original foam of the headphones. They tear and you cant get them back on. I made that mistake and now my KPH30i's high's hurt my ears because there is nothing between my ear and the driver. I wished I would have kept the original foam on, and THEN put the Grado pads over them. Instead I had to use the paper towel mod and now the high's don't hurt my ears. The hole in the pad still make a tunnel effect and I feel like that creates a pressure chamber that hurts my ears over time. I DO love the silicone resting band on this set. With that and the Grado pads, these became a lot more comfy, but I still would have to take them off after a couple hours, from my ears over-heating and the firm pressure on the ears. That combined with the lack of bass punch, I decided to keep looking.KOSS KPH40https://www.amazon.com/gp/product/B09KZC94X1/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1-I had heard that the KPH40 was the sound 'sweet spot' between Portapro's and KPH30i's, and they were right! These are currently my favorite headphones, even more than my less-than-budget-friendly Sennheiser HD599's (see below). The KPH40's are my Goldilocks Headphones. The KPH40's sound profile are a LITTLE more V-shape than the Portapro's and the KPH30i's. A little more bass than the KPH30i's and a little more high's than the Portapro's. Perfect. The bass is just right, and very accurate. The mids are there, but not overpowering. The high's are clear but still have that 'soft', 'easy-listening' sound I enjoy from the Koss drivers. Honestly I don't think a lot of people will hear a difference between the 3 Koss headphones I tried, its very subtle. They all have the same basic sound. But the differences were enough for me to recommend the KPH40's over the others.The koss headphones I tried aren't as clear and accurate as my HD599's but I enjoy listening to music on them more. It's just more laid back while still being clear and accurate enough. It has a pleasant 'cloudiness' to the whole sound image. I think some people call this 'veiled'. That's a good description. It's just not as harsh on the ears, I could listen to them all day without pain or fatigue. I put the YAXI pads I bought for my Portapro's on them and they fit fine. Super comfy. It didn't really need it because Koss learned from the KPH30i's mistake and made these earcups small. They sit right on the ear where it needs to and it doesnt hurt. The headband is also metal instead of plastic, so you can adjust it to exactly the clamping force and shape that you want. At first, I found the metal headband too skinny, it felt like it was cutting into my scalp. It wasn't, It just felt that way. So I actually took the silicone band I loved from the KPH30i's and taped it to the inside of the metal head band. LOL, I'm not fancy. I bet you could tape some rolled up paper towel to the inside and get a similarly comfy effect. This mimics the all day comfort I always got from my PX-100's. I think any future iteration's should still keep the metal band, but maybe include the silicone comfort band from the KPH30i's, don't touch the drivers or earcups, they are great. I LOVE the ribbon style cable that doesn't tangle. I don't really need the "utility series" connector, especially when the utlity cables cost $45, so if removing that makes these headphones $30 instead of $40, please do so and make these headphones an even more ridiculous bargain!SENNHEISER HD599https://www.amazon.com/Sennheiser-HD-599-Open-Headphone/dp/B01L1IICR2?ref_=ast_sto_dp&th=1-At $150, I almost didn't want to mention these as budget headphones, but for those looking to become Audiophiles, I think they are the cheapest Audiophile-quality option. Some recommend the Grado SR60's or SR80's, but I don't. They have zero bass, ear canal piercing highs, and are VERY uncomfortable to wear. The earcups are flat, high compression, and unyielding. I couldn't wear them for more than 3 minutes. The sound profile of those Grado's might be good for monitoring high's and mids, but not bass, so what's the point of them? Vocals and violins only? No thanks. The HD599's, on the other hand, have a very neutral profile with a SLIGHTLY elevated bass, perfect for monitoring, IMO. The bass is present, a little punchy, but not muddy or boomy at all. While the headphones were comfy on my ears, I found that it created weird air pressure differences in my ear canal. This became very fatiguing after an hour, even at the lowest possible volume to hear the music. Probably because of the bigger, more powerful drivers. I think they started to damage my ears. After a few weeks I couldnt wear them for more than 10 minutes without my ears hurting again. The only time any budget Koss driver did that was when I had the tunnel effect going on with the Grado Cushion Mod, and even then it was at a much lesser degree.---A NOTE ON AUDIOPHILIA...-But mostly I just recommend people don't become Audiophiles. It sucks.What a music-lover like me didn't understand was that Audiophiles don't listen to music, they monitor it. They don't absorb the entire composition, they nit-pick specific parts of it. This robs the listener of any enjoyment of the music. It kind of bother's me that they have stolen the title of "Audiophile". I think that belongs to music-lovers and music-makers. What we call "Audiophilia" should actually be called "Audiomonitoring". Calling it Audiophilia compels music-lovers like me to spend massive amounts of money on "better" headphones and audio setups to rob of us of any listening enjoyment we previously had with our $40 budget headphones, and rob our wallet while they are at it. I don't mean to insult or begrudge Audiophiles for a hobby they enjoy, I just don't like it when they are propped up as experts of the best sounding equipment. They aren't. They are experts for the best MONITORING equipment for sound engineers. If you enjoy music, I recommend you get a "consumer" headphone. I recommend you get the Koss KPH40.I like my KPH40's the best for listening to Music, TV, and Movies. Even over my Sennheiser HD599's. Its true that the HD599's have better clarity, but I enjoy music more with my KPH40's because I'm not hearing harshness or noises that the sound engineers never meant people to hear. Sometimes I felt like I was hearing TOO MUCH accuracy on the HD599's, like things the orchestra didn't want us to hear. I couldn't ENJOY my music because I was MONITORING it too much. I heard too much noise, not enough music. And I didn't have a CHOICE to enjoy the music, I HAD to monitor it. Audiophiles are nit-picky sound analysts, so take their hard-earned advice with that in mind.OK, A short message on Amp/DAC's. Don't bother.I have a Dragonfly Cobalt Amp/DAC. It costs $330. While it DOES make all my headphones sound better, it's practically negligable. MAYBE a 3-5% improvement in sound. Not really worth spending any kind of money on. The DAC on my computer is fine. Especially with the Koss budget headphones. It's recommended that you have an amp for heaphones that have an impedance of 50 ohms or higher. If its higher than 50 ohms you might want an amp just so the drivers are poperly driven, or it will sound real quiet. But test it first at full volume, you might not need it. If you do, there are Amp/DAC's in the $60 range that should do just fine. You definately don't need it with the KPH40's. So unless you can get it for free like I did (VERY nice friend), then I wouldn't bother with it.What about special cables? Not needed with the KPH40's alone. I had trouble with distortion running headphones from my amp using a cheap amazon 3.5mm extension cable, so I just got a USB extension cable instead and ran the headphones driectly from the amp. Problem solved. If your still having problems with distortion, there's guides online on how to make quality cables on the cheap. But you shouldn't need them. Please don't spend more than $20, the cost-to-sound improvement ratio is the worst here.OK, rant against the heaphone consumer industry over...and thank heaven for Koss!---So for normal people (99.9% of the population), I recommend you forget the expensive monitor stuff and get the KPH-40's for the $40. :DOther than the modifications I mentioned, you can also use the Kramer Mod to further fine tune the sound profile, but I don't think it's necessary with the KPH40's. Guides for the Kramer Mod can be found online.Here's the YAXI pads I used on the Portapro's and the KPH40'shttps://www.amazon.com/gp/product/B01MQVHX84/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&th=1Here's the Grado Pads I used on the KPH30i'shttps://www.amazon.com/gp/product/B00TGCDHL2/ref=ppx_yo_dt_b_asin_title_o04_s01?ie=UTF8&psc=1Here's some painters tape for the Portapro's. It doesn't leave residue if you change your mind later, and it matches the blue in the headphones nicely! :Dhttps://www.amazon.com/Duck-Painters-1-5-Inch-1-41-Inch-240194/dp/B0025KUSW8?ref_=ast_sto_dp&th=1A cheaper $7 3.5mm-to-lightning adapter so you don't have to buy the $45 one from Koss, (COUGH!)https://www.amazon.com/Apple-Lightning-Headphone-Jack-Adapter/dp/B01LXJFMGF?ref_=ast_sto_dpA popular budget Amp/DAC you don't need.https://www.amazon.com/Fosi-Audio-Headphone-Digital-Analog/dp/B07VDQQY95?ref_=ast_sto_dpIf you made it to the end, thanks for listening, and enjoy those heaphones!**UPDATE 8/9/2023I have to add a note here. Since this review I have noticed that the Koss KPH40 headphones do tend to "bloom" in the upper-mid Bass range. What does that mean? There is a mildly loud reverberation when the Bass hits a certain frequency, and ONLY that frequency. As the sound gets lower the bloom goes away. For this reason I have gone back to my repaired Sennheiser PX-100 (originals) as my main headphone. But I still love these headphones!
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    Top reviews from the United States

    • Reviewed in the United States on December 7, 2020
      Color: Black/SilverStyle: On-Ear HeadphoneVerified Purchase
      I will start this by saying I’m not an audiophile (I have/had ath m50x, beats solos, AirPods, and other basic audio products). After browsing the webs, this seemed like an excellent place to start. If you don’t wanna read this whole review (tl;dr) : these are worth every penny.

      Comfort: 3.5/5 initially, these felt weird. They aren’t cozy by any means like other headphones due to the metal headband and being on-ear. They’re insanely light, so it can feel like they aren’t there after a while (a good thing). The on-ear aspect really is a love or hate thing. They do make it so ur ears will not feel hot, so that is a plus.
      Note: The comfort becomes a 4 with Yaxi pads. They’re larger and softer than stock pads.

      Quality: 2/5 there had to be a sacrifice somewhere. The build is garbage. Let’s be honest: you can’t have it all at this price range. I appreciate the retro look of these, but there are issues:
      - headband is a thin metal that can tear ur hair out (use tape)
      - the “comfort zone” driver casing is very cheap plastic and feels flimsy
      - the cable is similar to that of $8 earbuds u buy from a pharmacy store.

      Sound: 4.5/5 (for price, 7/5)
      Man, oh mannnnnn. This is where it hits you. Youll say, “oh. That’s why people say to get these.”
      Sonically, these can sound better than headphones in the 100+ dollar range.

      Vs AirPods: They’re better than AirPods for sound. Not going to compare features bc no duh AirPods win, but sound wise, they’re better in every way.

      Vs Beats Solos: I have the cheap solos, so it’s not the new pros, but these are better sounding. More clarity and soundstage, maybe not as much bass (barely).

      Vs ATH M50x: this is where the fun begins.
      Detail: Almost as good detail as the m50x, but I actually enjoyed these more for listening to more neutral music vs the m50x (not saying much, since m50s are very V shaped).
      Soundstage: The soundstage may be even better than my m50x with the Yaxis on. They WILL leak sound, though, so if you can’t afford that, m50x is better.
      Bass: It doesn’t rattle your soul, but it isn’t weak either. M50x beats it in this category, which I’m not surprised by. The drivers are so much smaller.

      Noise isolation: These do not isolate noise. They’re on-ear, so that isn’t surprising. If you need noise cancellation, these aren’t the way to go.

      Conclusion:
      Get these!! Try em out. I got em for $20 so it wasn’t a huge investment, and I’ve heard they get this cheap pretty often.
      There’s a reason Koss still makes these. They’re light, look cool, and sound amazing for their price.

      P.S. GET YAXI PADS. They add soundstage and comfortability as well as style to these headphones. I grabbed yellow for an extra retro vibe, but there’s a bunch of colors to choose from.

      I grabbed a E10K off of eBay, so I might update to see how that affects the sound as well!
      Customer image
      5.0 out of 5 stars
      Cheap, but Beautiful Sound

      Reviewed in the United States on December 7, 2020
      I will start this by saying I’m not an audiophile (I have/had ath m50x, beats solos, AirPods, and other basic audio products). After browsing the webs, this seemed like an excellent place to start. If you don’t wanna read this whole review (tl;dr) : these are worth every penny.

      Comfort: 3.5/5 initially, these felt weird. They aren’t cozy by any means like other headphones due to the metal headband and being on-ear. They’re insanely light, so it can feel like they aren’t there after a while (a good thing). The on-ear aspect really is a love or hate thing. They do make it so ur ears will not feel hot, so that is a plus.
      Note: The comfort becomes a 4 with Yaxi pads. They’re larger and softer than stock pads.

      Quality: 2/5 there had to be a sacrifice somewhere. The build is garbage. Let’s be honest: you can’t have it all at this price range. I appreciate the retro look of these, but there are issues:
      - headband is a thin metal that can tear ur hair out (use tape)
      - the “comfort zone” driver casing is very cheap plastic and feels flimsy
      - the cable is similar to that of $8 earbuds u buy from a pharmacy store.

      Sound: 4.5/5 (for price, 7/5)
      Man, oh mannnnnn. This is where it hits you. Youll say, “oh. That’s why people say to get these.”
      Sonically, these can sound better than headphones in the 100+ dollar range.

      Vs AirPods: They’re better than AirPods for sound. Not going to compare features bc no duh AirPods win, but sound wise, they’re better in every way.

      Vs Beats Solos: I have the cheap solos, so it’s not the new pros, but these are better sounding. More clarity and soundstage, maybe not as much bass (barely).

      Vs ATH M50x: this is where the fun begins.
      Detail: Almost as good detail as the m50x, but I actually enjoyed these more for listening to more neutral music vs the m50x (not saying much, since m50s are very V shaped).
      Soundstage: The soundstage may be even better than my m50x with the Yaxis on. They WILL leak sound, though, so if you can’t afford that, m50x is better.
      Bass: It doesn’t rattle your soul, but it isn’t weak either. M50x beats it in this category, which I’m not surprised by. The drivers are so much smaller.

      Noise isolation: These do not isolate noise. They’re on-ear, so that isn’t surprising. If you need noise cancellation, these aren’t the way to go.

      Conclusion:
      Get these!! Try em out. I got em for $20 so it wasn’t a huge investment, and I’ve heard they get this cheap pretty often.
      There’s a reason Koss still makes these. They’re light, look cool, and sound amazing for their price.

      P.S. GET YAXI PADS. They add soundstage and comfortability as well as style to these headphones. I grabbed yellow for an extra retro vibe, but there’s a bunch of colors to choose from.

      I grabbed a E10K off of eBay, so I might update to see how that affects the sound as well!
      Images in this review
      Customer image
      17 people found this helpful
      Report
    • Reviewed in the United States on January 5, 2025
      Color: Black/SilverStyle: On-Ear HeadphoneVerified Purchase
      light-weight and comfortable, well-constructed
      excellent sound
      great choice at this price point
      One person found this helpful
      Report
    • Reviewed in the United States on May 1, 2004
      Color: Black/SilverStyle: On-Ear HeadphoneVerified Purchase
      Take what other reviewers have said about these headphones, believe them, and then multiply it by 100. I received a pair of Koss UR-20s as a gift years ago and loved them so naturally I looked to Koss again when replacing my portable/on-the-go headphones. After buying a pair of KSC-55s, which sounded great but were uncomfortable for me personally, I hopped on Amazon and found everyone raving about the PortaPros. I figured they were good, especially considering that the design seems unchanged since the 1980s (which has to mean something), but I also figured that this was one of those things that was just too good to be true. However, these are bar-none the most amazing headphones I have ever put on my head. Listening to some of my favorite songs for the first time was one of those 'wow' moments where you realize you have found something that changes your expectations completely. The bar will be raised the instant you hear the bass response and incredible acoustic qualities of these light, comfortable headphones.
      I don't know what I'm impressed with the most: the amazing bass, the excellent stereo division, or how loud they can get! These things are just as amazing as most of the reviews show them to be and then a lot more... I was worried about the eighties styling, but in person they don't look bad at all. I hate headphones that scream for attention, but these don't look like that when you have them on and I have already been wearing them in public (something I didn't think I would do after only seeing the picture of them online). And even if they're a bit outdated in appearance, the design is so functional you won't even give looks a second thought after you put them on.
      One thing is for sure: these things have plenty of bass! Not too much (not "boomy"), but they seem properly tuned for listening to things without "bass booster" turned on, which I like. Even with the bass settings adjusted high, the bass remains clear and crisp. I'm not sure how much power these can handle without damaging them, but I listen to them very loud and they do not sound distorted or stressed at all. After a few days my left speaker began making some weird noises and it ended up being a hair stuck inside the headphones that I cleared out with canned air. Something important to consider is that these are very open and airy headphones and the treble carries very well outside the headphones (so someone nearby could definitely hear what you're listening to if you have the volume up loud).
      Others have mentioned that they felt the headphones were too tight feeling, but I have a very large head and they fit me without a problem. However, if I will be wearing them for an extended period of time I always set them to the "Light" setting on the comfortZone control (which divides the side pressure of the headphones with your temples rather than just on your ears).
      I already had headphones I was pleased with (Sony MDR-G52s and Koss UR-20s) but I wanted a set of small, portable headphones for use with my laptop and these are perfect. The folding design isn't something I necessarily wanted, but it is nice. The carrying case they come with (a leatherette bag) is a slightly tight fit and I probably won't end up using it much since it is not a hard case that would protect them from shock or crushing. Some others have mentioned that they feel delicate or are easily broken, but compared to other small headphones I have had they seem very well built and equally strong considering their light weight.
      While I wouldn't say these are bad things about the PortaPros, it is worth mentioning that the headband is metal and will occasionally snag a hair as you adjust it on your head, and that they don't fold down as small as you might think they would so don't expect to put them in your pants pocket or something. Considering these are the worst things I can come up with to say about the PortaPros, they are nearly perfect in my book.
      I can't say enough good things about these PortaPros! They're simply amazing. These are the first headphones (or speakers) I've had that sound absolutely awesome without adjusting the equalizer or pumping up the bass. They sound good on everything from R&B to Country and everything in-between. I've been especially impressed that they pull the bass and highs out of a song without getting that shrill, tinny treble that plagues so many headphones. If there ever was a question about the quality of Koss stereophones in my mind, these PortaPros have put it to rest and made me into a lifetime customer! If you're like me you'll wish you had discovered these legendary headphones (haha! how often is that said?) years ago...
      107 people found this helpful
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    Top reviews from other countries

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    • Gilmar Andrade
      5.0 out of 5 stars EXCELENTE
      Reviewed in Brazil on January 11, 2025
      Color: Black/SilverStyle: On-Ear HeadphoneVerified Purchase
      ÓTIMO FONE RECOMENDO
    • Iván Trejo
      5.0 out of 5 stars Los mejores audífonos que he tenido, valen cada centavo
      Reviewed in Mexico on November 4, 2024
      Color: Black/SilverStyle: On-Ear HeadphoneVerified Purchase
      No me decidía entre éstos y los Koss KPH40
      Tengo entendido que la calidad es prácticamente la misma, solo que me decidí por estos por el diseño más retro

      El audio es excelente, impresionante la calidad que tienen, lo mejor es que son muy ligeros, por lo que si te agachas no se te caen por el peso como pasa con casi todos los audífonos de diadema modernos.

      No aíslan el audio exterior, por la calidad no lo vas a notar, pero eso es bueno porque puedo caminar y estar atento a mis alrededores mientras escucho música en buena calidad

      Combinados con un iPod classic es la mejor experiencia de audio, hasta puedo distinguir detalles en canciones que nunca había notado antes

      Y hasta le pedí a mi madre que me tejiera unas "esponjitas" la verdad no las necesita, solo se las puse para fines estéticos.

      Estoy muy contento con la compra, se ven frágiles pero son resistentes y los he estado usando literalmente todos los días desde que los compré, no me han fallado.
      Customer image
      Iván Trejo
      5.0 out of 5 stars
      Los mejores audífonos que he tenido, valen cada centavo

      Reviewed in Mexico on November 4, 2024
      No me decidía entre éstos y los Koss KPH40
      Tengo entendido que la calidad es prácticamente la misma, solo que me decidí por estos por el diseño más retro

      El audio es excelente, impresionante la calidad que tienen, lo mejor es que son muy ligeros, por lo que si te agachas no se te caen por el peso como pasa con casi todos los audífonos de diadema modernos.

      No aíslan el audio exterior, por la calidad no lo vas a notar, pero eso es bueno porque puedo caminar y estar atento a mis alrededores mientras escucho música en buena calidad

      Combinados con un iPod classic es la mejor experiencia de audio, hasta puedo distinguir detalles en canciones que nunca había notado antes

      Y hasta le pedí a mi madre que me tejiera unas "esponjitas" la verdad no las necesita, solo se las puse para fines estéticos.

      Estoy muy contento con la compra, se ven frágiles pero son resistentes y los he estado usando literalmente todos los días desde que los compré, no me han fallado.
      Images in this review
      Customer image
    • BEACHCAT
      5.0 out of 5 stars Declaration: They're Okay
      Reviewed in Canada on October 5, 2022
      Color: BlackStyle: On-Ear HeadphoneVerified Purchase
      Alright so I got them on a pretty neat discount. Back then I wasn't willing to pay the full price, and now that I have one I'm still not convinced on the 50+ cad price. Yeah sure it's wonderful pricing for such a great sounding headphone, but did you ever consider the consequence of taking such a plunge? I mean go on the internet and you'll either find raving reviews saying these are the best in class, or immeasurable disappointment who foolishly set too high of an expectation to get what they expected: Not good enough.

      When you buy one of these as a hobbyist, you look back at your audio, wondering where you've gone wrong. It's not quite audiophile enough to replace my more expensive, albeit larger sets of headphones, but it's not quite bassy enough to satisfy my basshead beast that's leaching off my life essence (curse you Sony Extrabass and your extra-bassyness that not even the bass the fish can sate my evergrowing lust for extra bass). I'd compare the bass level to what sony throws out on their non-Xtra-Bass lines of headphones.

      There's enough width to sound to almost pretend I'm in the place of recording... almost. It just lacks that little bit of something that ruins the immersion. Yeah sure it's wide, but what's the point if you're fully aware that what you're listening to is only a sample of what the audiophile world has in store for you? The audio listening hobby quickly shifts from a minor purchase here and there to irresponsible spending in a blink of an eye... and before you know it you've created a black hole in your wallet where your hund-o's used to live.

      That's what this is, unsatisfying in any way you look at it, if you've gotten a glimpse of what it could've been with a few more tens, hund-o's, or grandies to spend.

      Build quality is competent, but I wish the clamping force wasn't so hard, and the foam that's supposed to sit on the head to alleviate the problem doesn't reach my big, dumb head.

      Comfort is there, but not enough. The furthest settings for the "comfortZone" (which adjusts how much pressure the earpads assert on your poor ears) is just not light enough for my sensitive ears. I don't think I can spend a whole day wearing these without my ears getting sore. Good news for glasses wearers though (at least some of them), the pressure is put on the antitragus and the tragus, so though you'll get discomfort (or at least itchiness) in those middle outer parts of your ears, your glasses frame will likely not dig into your skull! But of course your mileage may vary.

      The cable is not noisy at all, though I don't think that matters much considering that these are open back, and you'll definitely hear the cable whack around furniture due to careless usage.

      The audio quality, though really good for the price, short of a miracle that everyone claims it to be, and a bit too bassy for ex-bassheads (and not bassy enough for the bassheads). It's a pretty warm sound, but the mids and highs are present enough to make it seem like it just has that extra bass on top of a balanced sound.

      Sure the driver units can be popped off and attached to other attachments (I've actually gone and put them on a KSC75 earhook), and the foam pad can be replaced with the much more comfortable and better sounding YAXI earpads... however I'm reviewing the product as it's own... and without any accessories (except a "protein leather" egg bag), this product is not good enough for all the praise everyone's screaming out...

      But that's what it is. Disappointment if and ONLY IF you set your expectations stupidly high based on reviews bowing down before its presence. If you ignore all the fans (somehow) and just buy the product expecting nothing but a 50$-sounding headphones, prepare to have your socks blown off to next sunday cuz this set of headphones is the best retro-style good-sounding headphones for the money!

      When you buy this, don't expect a giant-killer; Be humble, and you'll get more than you've bargained for. If not, at least these do well as conversation starters and/or room decoration.
      Customer image
      BEACHCAT
      5.0 out of 5 stars
      Declaration: They're Okay

      Reviewed in Canada on October 5, 2022
      Alright so I got them on a pretty neat discount. Back then I wasn't willing to pay the full price, and now that I have one I'm still not convinced on the 50+ cad price. Yeah sure it's wonderful pricing for such a great sounding headphone, but did you ever consider the consequence of taking such a plunge? I mean go on the internet and you'll either find raving reviews saying these are the best in class, or immeasurable disappointment who foolishly set too high of an expectation to get what they expected: Not good enough.

      When you buy one of these as a hobbyist, you look back at your audio, wondering where you've gone wrong. It's not quite audiophile enough to replace my more expensive, albeit larger sets of headphones, but it's not quite bassy enough to satisfy my basshead beast that's leaching off my life essence (curse you Sony Extrabass and your extra-bassyness that not even the bass the fish can sate my evergrowing lust for extra bass). I'd compare the bass level to what sony throws out on their non-Xtra-Bass lines of headphones.

      There's enough width to sound to almost pretend I'm in the place of recording... almost. It just lacks that little bit of something that ruins the immersion. Yeah sure it's wide, but what's the point if you're fully aware that what you're listening to is only a sample of what the audiophile world has in store for you? The audio listening hobby quickly shifts from a minor purchase here and there to irresponsible spending in a blink of an eye... and before you know it you've created a black hole in your wallet where your hund-o's used to live.

      That's what this is, unsatisfying in any way you look at it, if you've gotten a glimpse of what it could've been with a few more tens, hund-o's, or grandies to spend.

      Build quality is competent, but I wish the clamping force wasn't so hard, and the foam that's supposed to sit on the head to alleviate the problem doesn't reach my big, dumb head.

      Comfort is there, but not enough. The furthest settings for the "comfortZone" (which adjusts how much pressure the earpads assert on your poor ears) is just not light enough for my sensitive ears. I don't think I can spend a whole day wearing these without my ears getting sore. Good news for glasses wearers though (at least some of them), the pressure is put on the antitragus and the tragus, so though you'll get discomfort (or at least itchiness) in those middle outer parts of your ears, your glasses frame will likely not dig into your skull! But of course your mileage may vary.

      The cable is not noisy at all, though I don't think that matters much considering that these are open back, and you'll definitely hear the cable whack around furniture due to careless usage.

      The audio quality, though really good for the price, short of a miracle that everyone claims it to be, and a bit too bassy for ex-bassheads (and not bassy enough for the bassheads). It's a pretty warm sound, but the mids and highs are present enough to make it seem like it just has that extra bass on top of a balanced sound.

      Sure the driver units can be popped off and attached to other attachments (I've actually gone and put them on a KSC75 earhook), and the foam pad can be replaced with the much more comfortable and better sounding YAXI earpads... however I'm reviewing the product as it's own... and without any accessories (except a "protein leather" egg bag), this product is not good enough for all the praise everyone's screaming out...

      But that's what it is. Disappointment if and ONLY IF you set your expectations stupidly high based on reviews bowing down before its presence. If you ignore all the fans (somehow) and just buy the product expecting nothing but a 50$-sounding headphones, prepare to have your socks blown off to next sunday cuz this set of headphones is the best retro-style good-sounding headphones for the money!

      When you buy this, don't expect a giant-killer; Be humble, and you'll get more than you've bargained for. If not, at least these do well as conversation starters and/or room decoration.
      Images in this review
      Customer imageCustomer imageCustomer image
    • dtox
      5.0 out of 5 stars Great for price, skewed towards bass
      Reviewed in Canada on May 27, 2022
      Color: BlackStyle: On-ear headphonesVerified Purchase
      These are fantastic for the price, especially as a gateway into the audiophile realm. Pound for pound they stack up equally with headphones more than twice the price, they punch way above their weight. Open backed so while you can hear everything around you and bleed sound, the sound quality itself and soundstage is likely going to blow most people's minds, especially anyone who hasn't used expensive high end headphones before. These are fairly bass skewed if that's your bag, if you prefer a more neutral mid based sound I recommend the kph-30i. Build quality feels sort of cheap and I think that's how they managed to sound so good at such a low price. The cables to the earphones themselves are very thin and feel flimsy. I keep them in the nice little carrying case they come in and use them solely at home, so far so good. The lifetime warranty however adds a feeling of security against the cheaper build and is nice to see. They are strange looking and will turn heads, not in a positive sense, but that design comes with some benefits. They are extremely light and comfortable, that alone almost cancels out the ugly duckling vibe.

      Long story short these offer sound that punches way above their weight and will likely be the best sounding headphones that someone who has always used cheaper headphones will ever hear. The open backed design gives a real soundstage that makes the music sound likes it's coming from all around you. These come with a high recommendation from me!
    • Lukas
      5.0 out of 5 stars Unglaublich Gut!
      Reviewed in Germany on January 29, 2025
      Color: BlackStyle: On-ear headphonesVerified Purchase
      Unglaublich fantastisch. Ich frage mich jedesmal beim Hören, wie diese kleinen Dinger so einen verdammt guten und sauberen Sound heraus bringen können. Ich höre überwiegend Metal und auch im Vergleich zu anderen sehr guten, modernen In-Ear und Over-Ear Bluetooth Kopfhörern wechsel ich freiwillig immer wieder zu den Koss Porta Pro zurück. Hammerteile!