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Koss Pro4AAT Titanium Pro Headphones

by Koss

List Price: $99.99
Price: $89.57 & FREE Shipping. Details
You Save: $10.42 (10%)
Only 3 left in stock.
Ships from and sold by Amazon.com. Gift-wrap available.
  • Titanium Coated High Polymer Titanium Diaphragm for Accurate Sound Reproduction
  • Oxygen Free Copper Voice Coils for Signal Clarity
  • Closed Ear Cushions for Maximum Bass and Isolation
  • Stereophones, with 3.5mm plug, and 6.3mm adaptor
  • Adjustable Slide Bars Ensure A Snug Fit
  • Closed Pneumalite Cushions Form A Positive, Comfortable Seal Around The Ears
  • Freq Resp: 10 Hz-25 Khz Imp: 250
8 new from $89.57

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Frequently Bought Together

Koss Pro4AAT Titanium Pro Headphones + Maxell HP-20 Headphone Extension Cord with Adapters (190399)
Price for both: $97.47

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Compare to Similar Items

This item: Koss Pro4AAT Titanium Pro Headphones
Customer Rating (114) (28) (33) (47)
Price $ 89.57 $ 77.99 $ 50.04 $ 59.95
Shipping FREE Shipping FREE Shipping FREE Shipping $ 10.89
Sold By Amazon.com Direct Distributor Amazon.com Adorama Camera
Color Black, Silver, Titanic Silver Silver Black/Silver
Special Features Noise-Cancelling-Feature Information not Provided KOSS HEADPHONES noise cancelling
Fit Over-Ear Supraaural Supraaural Over-Ear
Dimensions 4.2 inches x 9.1 inches x 8.5 inches 3 inches x 8.63 inches x 9 inches 4.3 inches x 9.1 inches x 8.6 inches 8.8 inches x 2.2 inches x 6.4 inches
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Technical Details

  • Noise-Cancelling-Feature

Product Details

  • Product Dimensions: 9.1 x 8.5 x 4.2 inches ; 12.3 ounces
  • Shipping Weight: 1.8 pounds (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B00008Z1QI
  • Item model number: 145567
  • Average Customer Review: 3.7 out of 5 stars  See all reviews (114 customer reviews)
  • Date first available at Amazon.com: November 28, 2006

Product Description

Product Description

This full-size professional quality stereophone has long been the headphone of choice for broadcast and recording professionals whose careers demand reliable equipment and superior performance. As the first dynamic stereophone to deliver true full frequency, high-fidelity performance, the PRO4AA set the standard when it was introduced in its original form in 1970. In the late 1980s after long service, it was retired and replaced by a newer model. Customers clamored for its return, and by 1988 it was brought back by popular demand. Since then, though we've incorporated performance-enhancing technology and updated its style, the essence of the PRO4AA remains unchanged and it continues to set the standard for performance and reliability today.The PRO4AA features dynamic elements for an exceptionally wide frequency response from 10-25,000 Hz. Designed for frequent use over extended periods, the PRO4AA's durable steel and rubber headband is generously padded. Adjustable slide bars ensure a snug fit, also critical for hearing every note and keeping unwanted sounds out. The heavy-duty, single-entry ten-foot coiled cord affords ample flexibility of movement. It includes microphone mount hardware for complete versatility. The PRO4AA has a 6.3mm (1/4") plug and an 8 foot coiled cord.Whether you are a sound professional or simply love music, the PRO4AA will deliver excellent isolation, accurate sound reproduction, and the excitement of a live performance to your recording.


Koss Pro4AAT Titanium Pro Headphones are rugged, closed-ear headphones built tough enough for broadcast use but at a price even the smallest studios can afford. Built for extreme durability and with a closed ear design for maximum bass and isolation, these headphones have a wide frequency response of 10 Hz-25 kHz and feature titanium-coated high polymer diaphragms for crisp, accurate sound and oxygen-free copper voice coils for signal clarity.

Customer Reviews

So I learned: 1.
The reason why I say that I will never need another set of headphone again in life is because.
C. Harrell
As with any closed ear headphones, they can get a little tight on your head after a while.
Jeff Tomkinson

Most Helpful Customer Reviews

152 of 166 people found the following review helpful By A Customer on July 18, 2003
O.K. my dad, who was in broadcasting over 20 years ago owned a pair of these, they broke finally, he called Koss, they said send them in, we have a Lifetime Guarantee on all our headphones. They told him they didn't have the exact model he owned since they were so old, but would send him the updated version.(Pro4AA Titanium) While he was a little skeptical of the quality, (I got the story about how they just don't make things like they used to.) and sad to have to send them in, he acted like a good friend died, we finally boxed them up and sent them off. (Cost us $7.00 at USPS) About a week later these arrived, no charge. He took them out of the box and was complaining about how they just weren't the same, then he put them on, and started listening to music, he has had a smile on his face ear to ear ever since, and told me how much lighter and more comfortable they were, he also mentioned that he hated to admit it but they also sounded beter. Needless to say while there was some sentimental value with the old pair he is very happy with the new pair and the improvements that have been made over the years. I also found out from the Koss web site that they invented headphones over 50 years ago, and it is thanks to them that all of our products today have a headphone jack on them. If you want a Headphone that you can pass along to your great grand kids get a pair of Koss Headphones.
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46 of 48 people found the following review helpful By W. Williams on March 26, 2004
Verified Purchase
Myself being new to the world of higher-end headphones (it seems full of crazy lingo and brand loyalty), I searched the net for several days for what were considered the best brands. I chose these Koss because I knew the name (and the lifetime warranty, and stories of no-hassle returns, are far more than Sony, Sennheiser, or the rest can boast in the same price range) and I wanted an isolating set of headphones to use for studying (while my roommate pounds out Jay-Z and OutKast on his stereo). The Sonys seemed a little gimmicky (90 day warranty?) and overpriced. I looked at some Bose phones, but they were far out of my price-range. The Sennheisers, according to some "purists", provide the best overall sound quality (although I couldn't imagine anything surpassing these by much), but they appeared too bland-looking and fragile for my tastes.

When I got these I loved them from the start. I never knew they made headphones that sound better than a quality stereo! The sound detail is excellent with audio CDs and MP3s, and the bass is strong but not overpowering. I haven't yet tried these out on DVDs, but I would imagine they would be awesome. As far as isolating goes, I don't know why you would need any type of noise-cancelling headphones (which sacrifice sound quality for technology), because with these babies on, all you hear is the music. My roommate has to throw something at me to get my attention when I have these on! For the newbies out there: these are not for use with a portable CD player or MP3 player; they fall far short of the amplifying power needed to push these phones.
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16 of 17 people found the following review helpful By Mark E on December 12, 2005
Bought them for the sound quality and lifetime warranty. After only one week of use I am pleased with the sound, but the weight of these is killing my neck. They do create a nice seal around my ears to block out noise, but my ears almost start sweating after and hour or so. Now, not to knock them too hard cause they are nice, but I have too big of a head for these. Fully extended the headpad still gives me a headache from resting and pressing up there. Great headphones for short listening periods and excellent sound quality, but just not fitting me right.
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11 of 11 people found the following review helpful By DJ Neal Money on October 24, 2005
I was a Club DJ for eight years and I've always used Koss headphones on the job and at home. This is my forth pair of Koss headphones, my first two pair lasted up until a year ago so I replaced them with the Pro4AAT and as a backup I purchased a pair of Koss R/80's. The sound quality of both are nothing less than superb. Koss also stands behind their product

with a lifetime warranty and will repair or replace your headphones for just the cost of shipping. There are plenty of high priced headphones on the market that claim to be for audiophiles and serious listeners, I've listened to a few and none can compare. Koss user for life.
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30 of 37 people found the following review helpful By M. Wilson on August 4, 2005
These headphones sound great. I listen mainly to DVD's and do some online gaming and I have to tell ya, the bass these things can pump out is quite remarkable. The high's are crisp and mid's sound so natural, they truly are amazing. But!! They are tight.. For the first couple of minutes there fine but after a while you start to feel like your head is in a vise! (but they sound sooo good) And did I say ENORMOUS!! These thing are huge!! It's like wearing two VW's on your head (But they sound soooo good) and let's talk about wet ears, that's right wet ears.. After a few minutes my ears get all wet and sweaty (but they sound soooo good). Let's talk about the weight, Lord these things are heavy! and I mean heavy!!! Like I said" two VW's on your head" (but they sound sooo good). These are definitely NOT headphones for sissy's! You have to be a REAL MAN to wear these things! So if your a REAL MAN looking for some headphones that SOUND GREAT!!! are ENORMOUS!!, WEIGH A TON!!, CRUSH YOUR HEAD!! and make your ears sweat THEN BUY UM!!!!! You will not regret it. And if after a while of wearing them if your head feels like it's gonna explode!! SUCK IT UP!!! ADAPT AND OVERCOME!! cause your a REAL MAN!!!!
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