Koss Pro4S Full Size Over-Ear Studio Headphones, Detachable Cord with Dual Choice Entry, Black with Silver Trim
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Availability:
In Stock.
Arrives
Thursday, May 22
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Features
- Design Your Music with these professional, unbiased, fine-tuned Studio Headphones
- Aluminum Construction - comfort and durability meet in this lightweight headphone
- Dual Choice Entry - choose either left of right cord entry and monitor through multiple headphones with a unique pass-through feature
- Contour Sealing Cushion - the unique D-profile closes gaps around the ear, improving comfort, fit, isolation, and sound
- Koss SLX40 Dynamic Element precisely tuned to accurately convey the sound produced in the studio. Connectivity Technology: Wired Detachable
Brand: Koss
Color: Black
Ear Placement: Over Ear
Form Factor: Over Ear
Noise Control: Sound Isolation
Headphones Jack: 6.35 mm Jack
Model Name: Koss Pro4S
Connectivity Technology: Wired
Special Feature: HIFI
Age Range (Description): Adult
Material: Aluminum
Specific Uses For Product: Studio
Recommended Uses For Product: Cycling, Running, Exercising
Cable Feature: Detachable
Item Weight: 6.4 ounces
Package Type: Standard Packaging
Style: Full Size
Number of Items: 1
Number of Power Levels: 1
UPC: 021299184479
Global Trade Identification Number: 79
Manufacturer: Koss
Product Dimensions: 8 x 7.5 x 2 inches
Country of Origin: China
Item model number: Pro4S
Is Discontinued By Manufacturer: No
Date First Available: November 11, 2014
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, May 22
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Product Packaging: Standard Packaging
A lot of headphone critics will say that "professional" headphones aren't good for "home" use; but after using these headphones, I believe that's a bunch of bologna. These have an extraordinarily flat frequency response--right up there with the best of the professional sets (that cost, by the way, several times the price of these). Most who have an active interest in headphones would probably equate that to an overtly "sterile" experience. I have not found that to be the case in the slightest. I gladly use these every day, whether I'm listening critically, or just listening to music for fun. I couldn't be happier with them. Starting with the build-quality, they are very strong overall. The cups are expertly crafted in metal, all major pivoting points utilize metal components, and the headband--while conforming and twistable--feels built to last. I have absolutely no concerns with the long-term durability, but even if I did, Koss is extremely generous with their iconic lifetime warranty. I've used it several times in the replacing of the low-quality cable insulation on my Porta Pros, and have never been disappointed (though I really think Koss would save money by just giving he Porta Pros a higher-quality cable). Speaking of cables, the provided Pro4S cables are extremely durable. Given that they are professional-grade, they are long, coiled, and heavy. But, if they're too heavy or robust for your taste, they're easily removable--you can use whatever 3.5mm slim-jack cable you like. You can even plug them into whichever side you prefer. They do not, however, include a remote or microphone. Factor a microphone cable into the cost if that's a deal-breaker (I highly recommend the V-Moda BoomPro if you're using these for communication or gaming). Comfort is good to very-good. I generally prefer open-back over-ear headphones which allow an open, airy comfort (and sound) experience. These aren't quite up to that level of comfort (few closed-headphones are), but they're still comfortable enough to wear for hours at a time. Koss made a big deal about their D-profile earcups. In truth, I don't know if it's really that much better than the standard oval profiles; but they are certainly not worse. They fit well, are soft leatherette, and exhibit a proper amount of force that is neither leaky nor overbearing (and for the record, I have a large head). You probably won't forget you're wearing them (like you can with well-designed open-back, airy headphones), but you likely won't be discomforted by their presence. Aesthetically, they look better in person than they do in photos. They straddle a sublime balance of professional, almost industrial look with high-quality luxury appearance. They are a truly nice-looking headphone. Great use of accents, materials, and shapes. Sound is where they score the real points with me (other than their overall outstanding value). Per near unanimous recommendation, I was previously using Meze 99 Classics which are geared toward the typical home user with a luxury mindset. And they were very luxurious in their materials and design. But the sound quality was downright sloppy and fatiguing to my taste. These Koss, on the other hand, seem very accurate and tight with a smooth sound character that lends itself well to extended listening sessions. And any frequency that you can possibly hear? These will reproduce them in a strong, levelled manner with meticulous detail. Some critic reviews claimed that they have a somewhat recessed vocal range, but that minor truth adds to their overall pleasant feel. They don't have an excessive midrange presence that a lot of "flat" headphones exhibit. It is important to note, though, that they don't have that U-shaped response curve that some of the more popular home user headphones have, either. I'd describe them as more appropriately balanced than most headphones I've used. I consider it a non-issue. Almost a pro, in fact. Going back to the "sterile" comment, these are definitely not sterile. They are downright lively in my opinion. I haven't listened to any genre of music that I didn't think these were apt at playing. Live/acoustic music? Wonderfully spacious for a closed-back. Bass-heavy hip-hop or electronic? Bring it on! Metal? Tight and energetic. Rock and pop? Clean and discrete. I am absolutely floored with their performance across all music types. It's funny how the frequency response spectrum tells so little of how a headphone will actually sound. While these are indeed accurate headphones, they can not be described as "boring"--just genuinely enjoyable, with a knack for critical detail and balance. There is one thing that I'd want to be of note to people using them for home use: while they're easier to drive than most pro-grade headphones, they still aren't quite as easy as traditional-use headphones. Your tablet and phone can still drive them to satisfying levels, but they're not quite as sensitive as some people are used to. At least to those who are used to damaging their hearing at extremely high levels, anyways (I reluctantly raise my hand). In conclusion, there was a six-month period where I bought seven highly-acclaimed closed-back headphones in the $200-400 msrp range (largely per Innerfidelity's Wall of Fame), none of which did I see as suitable long-term solutions. In a moment of tired desperation, I decided that Koss has always been great to me, I should try their Pro4S despite Tyll's lukewarm reaction. I am so glad I made that decision. I have had absolutely no desire to shop for other headphones in the six months since. My previous-choice Mezes were put up for sale. I am DONE. And I think anyone reading this review should give these a try, too. You could save a lot of money versus some less-impressive high-cache brands that may disappoint you the same way they disappointed me. These are a no-brainer.
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Reviewed in the United States on June 11, 2017 by A Guy
Product Packaging: Standard Packaging
Update (Oct 2018) - Still using these and I love them. No real signs of wear at all, but they have fully broken in and sound amazing. Currently listening to Halycon + On + On from Orbital's 1993 brown album and it's just amazing, but equally good with jazz, classical, pop, r&b, and rap. These really are great headphones. Still 4.5-stars outta 5. Update (Jan 2017) - I am still using these on an almost daily basis at the office and so far, so good. No issues with the ear cups or supplied cable, nor with the 3.5mm jacks on either side of the headphones (a really handy feature). Let me start by saying I really like these headphones and will highly recommend them for casual listening. They are comfortable and sound incredible once broken in with very good reproduction from highs to lows - even sub-20Hz comes through on recordings like Techmaster P.E.B.'s "Computer Love" - without overemphasizing anything. They are neutral, yet full and rich. You can listen to classical, jazz, blues, country, rap, EDM, pop/rock (I have a soft spot for 80's music), et al with equal enjoyment. I find I can wear these 2-3 hours at a time (with glasses) and only need a short break - maybe 15-20 minutes - before I put them back on. I probably wear these 6 hours a day and play at rather low and sometimes fairly high volumes. FYI - the higher the volume the fuller the sound, but the sooner I need a break. Your mileage may vary - I'm getting old. Now, I wish I could give these at least 4.5 stars as they are incredible headphones for the price, but they have trouble creating an open and spacious sound stage. This isn't an issue when I'm using these for casual listening at work to drown out the folks around me in the cubicle farm or on flights - they do a good job of reducing background noise and can be turned up without disturbing your neighbors - but for critical listening they just don't pass the mustard. Prime example is Miles Davis - Kind of Blue. On my home system I can close my eyes and pinpoint the position of every player as if they are on a large stage in a nightclub; it's an open and airy feeling, and you get a good sense of where the musicians are located, side-to-side and front-to-rear. With the Pro4S, everything is squeezed together and sometimes on top of each other like they are crammed into a tiny studio. Again, perfectly fine for casual listening but not for critical. Granted, my experience with headphones has been limited for some time as I've suffered with earbuds for years, but coming from a past of using high quality studio headphones like the Pro4AA as well as others, I'd say give these a test first if you want to use these for studio work, but expect to be slightly disappointed if spaciousness is what you're after. If you're just after a great pair of headphones for daily use, then I can't say enough about how good these really are. Seriously worth every penny. Final note - I've seen some people complain about the cable, as in another cable is better or they stock cable falls out. While I haven't tried a different cable, I can assure you I have had zero problems with the cord popping out of the headphones, and I've used these almost daily for almost 3 years now. If it does happen, I'm fully confident that Koss will replace these under warranty.
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Reviewed in the United States on May 20, 2016 by Senor Muchacho Pantalones