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Technical Details
- Traditional style headphones designed for frequesnt use
- Generously padded and durable steel and rubber headband
- 3.5 mm plug and 6.3 mm screw-on type adapter with gold-flashing both included
- Delivers excellent sound isolation and accurate sound reproduction
- closed Pneumalite cushions form a positive, comfortable seal around the ears
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Product Description
Manufacturer's 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 Titanium features dynamic elements for an exceptionally wide frequency response from 10-25,000 Hz. A 2 mil. titanium coating on its diaphragms increases the rigidity of the element, minimizing mechanical distortion and ensuring exceedingly accurate sound reproduction. One-inch (25.4 mm) diameter oxygen-free copper voice coils improve signal transmission and conduction for cleaner, clearer sound. For times when every note must be captured and no sound allowed to leak through, closed PneumaliteTM cushions form a positive, comfortable seal around the ears, maximizing bass frequencies and isolating the listener from ambient noise.
Designed for frequent use over extended periods, the PRO4AAT'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 eight-foot coiled cord affords ample flexibility of movement. A 3.5 mm (1/8") plug and a 6.3 mm (¼") screw-on type adapter, both with gold-flashing, are included.
Whether you are a sound professional or simply love music, the PRO4AAT will deliver excellent isolation, accurate sound reproduction, and the excitement of a live performance to your recording.
The PRO4AA Titanium features dynamic elements for an exceptionally wide frequency response from 10-25,000 Hz. A 2 mil. titanium coating on its diaphragms increases the rigidity of the element, minimizing mechanical distortion and ensuring exceedingly accurate sound reproduction. One-inch (25.4 mm) diameter oxygen-free copper voice coils improve signal transmission and conduction for cleaner, clearer sound. For times when every note must be captured and no sound allowed to leak through, closed PneumaliteTM cushions form a positive, comfortable seal around the ears, maximizing bass frequencies and isolating the listener from ambient noise.
Designed for frequent use over extended periods, the PRO4AAT'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 eight-foot coiled cord affords ample flexibility of movement. A 3.5 mm (1/8") plug and a 6.3 mm (¼") screw-on type adapter, both with gold-flashing, are included.
Whether you are a sound professional or simply love music, the PRO4AAT will deliver excellent isolation, accurate sound reproduction, and the excitement of a live performance to your recording.
Product Description
Pro hifi/studio headphones Frequency response 10Hz - 25kHz Impedance 250 ohms Sensitivity 96dB SPL 8ft (2.4m) cord length Delivered with case and 6.35mm jack adaptor
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Customer Reviews
Most Helpful Customer Reviews
5 of 5 people found the following review helpful
As a fan of both listening to and playing music, I thought it was about time I treated myself to a set of good quality, noise canceling ear phones, and after a pretty comprehensive search i settled on these, and am very glad I did! good volume, clear, sharp, bright tones, effective isolation, sturdy build, comfortable padding and great base (especially when used with an equalizer). However these headphones are very big and rather heavy, and whilst they are comfortable, i wouldn't recommend them for use whilst walking or cycling. all in all these headphones are far superior to any others i have used, i would recommend these headphones to anyone that wants superior sound quality and build quality, and dont mind the weight, and the lifetime warranty is just the icing on the cake! hope you find this review helpful1
5 of 5 people found the following review helpful
These headphones are amazing quality in terms of sound and design. They are heavy but your'll get used the the weight as i have. They also come with a lifetime warrenty where as most other brands only offer say 6-12 months or cover. To me this is brilliant as i have onwed many pairs of stereo headphones that have been accidently broken and the warrenty didnt'nt cover them as it ran out. With these headphones there is not worry what so ever, Koss are a brilliant company they are pionerrs when it comes to headphones as these where brought back due to popular demand in the 70's and 80's.
They are very comfortable, have a very strong build with the titanium casing, which is why the have the bit a weight on them which to me i think is a must have, other brands of headphones e.g (Sony, Skullcandy and Boss) they are all build in my opinion to break after long use where as these are build to last a lifetime !!!
You cant get a better quailty of headphone with a lifetime warrenty and a nice little case to keep the dust off as they have a spiral type cord so the cable will never get caught, and they have a gold plated jack for a suburb connection.
They are an amazing bit of kit and i would recommend them strongly.
They say exspencive don't mean better but in the case your getting Professional quality in all aspects , build, superb sound , comfort and weight.
Get there now dont think twice they will last a lifetime !!!
Koss PRO/4AAT - Titanium Stereo High quality Headphone !!!
They are very comfortable, have a very strong build with the titanium casing, which is why the have the bit a weight on them which to me i think is a must have, other brands of headphones e.g (Sony, Skullcandy and Boss) they are all build in my opinion to break after long use where as these are build to last a lifetime !!!
You cant get a better quailty of headphone with a lifetime warrenty and a nice little case to keep the dust off as they have a spiral type cord so the cable will never get caught, and they have a gold plated jack for a suburb connection.
They are an amazing bit of kit and i would recommend them strongly.
They say exspencive don't mean better but in the case your getting Professional quality in all aspects , build, superb sound , comfort and weight.
Get there now dont think twice they will last a lifetime !!!
Koss PRO/4AAT - Titanium Stereo High quality Headphone !!!
3 of 3 people found the following review helpful
For a very reasonable sum, these headphones provide stunning audio quality, and solid construction, backed up by a lifetime replacement warranty. Prior to these, the best headphones I have ever heard were the Etymotic HF2s. In comparison, these are just as detailed, but significantly warmer sounding, especially with really rich, resonant bass for classical music. (Currently listening to Bottesini Concertino in C for Double Bass... the lows are just breathtaking).
On the down-sides, these are big and a little heavy, although personally, I find quite comfortable. But they're not something you could easily through in your bag for work each day. More of a treasure for indulging in at home. And they do need good amplification: on an iPod / IPad, the sound is a little quiet. Plugged into my iTube valve amp, they absolutely sing. (Also, for some reason I don't understand, on my Sony headphones, I could hear a lot of hiss from the iTube, which is completely absent on the Koss phones). I've ordered a Fiio E10 to use with my laptop when I'm away on business trips, and don't have access to a 'proper' amplifier.
*update* the E10 arrived today.. for comparison, I plugged the Koss phones directly into the computer (MacPro) for the first time, as had previously been listening through headphone socket on amplifier. On the computer alone, could barely hear anything at all through the phones. SO quiet. These phones definitely need amplification for use with computer. Oddly, whilst quiet on iPod / iPad, still useable.*
I'm loving the sound of these, and think in terms of value for money, they are incredible, especially when compared to most offerings on the high street. P.S. Sound isolation is extreme - you don't hear anything else around you when listening to these!
On the down-sides, these are big and a little heavy, although personally, I find quite comfortable. But they're not something you could easily through in your bag for work each day. More of a treasure for indulging in at home. And they do need good amplification: on an iPod / IPad, the sound is a little quiet. Plugged into my iTube valve amp, they absolutely sing. (Also, for some reason I don't understand, on my Sony headphones, I could hear a lot of hiss from the iTube, which is completely absent on the Koss phones). I've ordered a Fiio E10 to use with my laptop when I'm away on business trips, and don't have access to a 'proper' amplifier.
*update* the E10 arrived today.. for comparison, I plugged the Koss phones directly into the computer (MacPro) for the first time, as had previously been listening through headphone socket on amplifier. On the computer alone, could barely hear anything at all through the phones. SO quiet. These phones definitely need amplification for use with computer. Oddly, whilst quiet on iPod / iPad, still useable.*
I'm loving the sound of these, and think in terms of value for money, they are incredible, especially when compared to most offerings on the high street. P.S. Sound isolation is extreme - you don't hear anything else around you when listening to these!
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Most Recent Customer Reviews
Awful, Do Not Buy.
I bought these on the strength of how good the Porta Pro's are. These are nowhere near as good, they are not worth the money and the sound is more like those awful Beats By Dre... Read more
Published 1 month ago by AudioPhile
They broke
The earphones broke of one side from the cheap plastic casing from putting them on and off repeatedly.
You get what you pay for I guess. Read more
You get what you pay for I guess. Read more
Published 1 month ago by Moo
Koss headphones
The headphones are really good at blocking out outside sounds so you can focus on what you are listening to and are very good quality.
Published 5 months ago by Dolina Duff
Seriously good headphones. Love them!
These are really great headphones at a good price which doesn't break the bank. Sound quality is really superb. Read more
Published 6 months ago by Sam Margate
PRO quality, just ....
..... u need to warm it up at least 150hours (better 200h), until they reach their best sound. It is my 4th Koss headphones, after PortaPRO, UR40 and ProAAT3. Read more
Published 6 months ago by MartinM
Very Good Indeed
These headphones come with a standard 2.5mm size jack output, and also a 3.5mm adaptor, and a storage bag, which is great. Read more
Published 8 months ago by Dougie
Not as good as expected
I wanted some over-ear headphones for travelling and was mostly looking at sennheiser, but didn't want an old model and couldn't afford the newest model so found these Koss... Read more
Published 9 months ago by CBH
Heavy and Bulky Headphones
These are good headphones, but are very heavy and very bulky. They also include a 3.5 to 6.35mm adapter, which surprised me as I had separately ordered an adapter; maybe I should... Read more
Published 17 months ago by jb1
A REVIEW FOR NON-PROFFESIONALS
+++
1) Price - Proffesional headphones for 60 quid? Oh yes.
2) Quality of sound - burn them in and play with your equalizer for a while, you will be amazed. Read more
1) Price - Proffesional headphones for 60 quid? Oh yes.
2) Quality of sound - burn them in and play with your equalizer for a while, you will be amazed. Read more
Published 20 months ago by Jan Stehlik
Amazing look and sound!
These look and sound brilliant!! Totally impressed by these and I would put these up against any of the other big popular brands anyday. Read more
Published 20 months ago by Lee Mcguigan
Listmania!
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