PRO4AAOver Ear Headphones

Koss Pro4AA headphones set the standard for full size professional headphones. They were introduced in 1970 as the first dynamic headphones to deliver true full frequency and high fidelity performance with impressive noise isolating capabilities.

 

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Retired in the late ’80s, Koss swiftly returned the Pro4AA headphones to its product lineup due to overwhelming popular demand. They have since remained a staple of studio headphones in the radio and recording industries. Koss Pro4AAs meet the stringent demands of broadcast and recording professionals who require reliable equipment and superior performance. The full size professional headphones keep unwanted sounds out while letting every note in. Whether you’re a sound professional or an audiophile, Pro4AAs deliver superior isolation, accurate reproduction and sound intensity, and the excitement of a live performance with every recording. Connecting with your music has never sounded so good.
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Customer Reviews

Based on 7 reviews
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Willard Arbour
Always My First Choice

I’ve been a radio broadcaster for 32 years. My first choice in headphones has always been the Koss Pro4AA’s.
Sure the stations always supplied headphones for their announcers but as soon as I got my first paycheck, these were the first thing on my shopping list. The sound is great and the excellent isolation insures that you can turn it up without the danger of feedback. So, turn it up! You won’t miss a detail with these “cans.”

H
Howard
Great way to start

Had the same pair of Pros since 1972. Same pair and same sound. Held up to all conditions I threw at them!

D
Dan Lette
Excellent Headphones

I purchased two pair of the Pro 4AA Headphones and I am completely satisfied. Before purchasing I did do some research and read many, many reviews and I was somewhat alarmed at the number of negative reviews that were out there. But having known the Koss brand for quite sometime and their excellent reputation I took the chance and purchased the two pair, and I am glad I did! The sound is crisp and clear and they are very well made. One of the biggest negatives I read is that the Headphones are TOO HEAVY’…. While they are heavier than most, they are not uncomfortably heavy, in fact they feel solid and secure!! To anyone thinking about these Headphones, do not be swayed by the negative reviews!! These are EXCELLENT Headphones!!

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Stephen
RIP

After 47years my Pro 4AA have stopped working. A testament to their build quality, they've had a lot of use and abuse, compared to newer models not the great sound quality with bottom end lacking. But have provided many enjoyable hours.

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veit koss
Incredible value but needs at least 24 "break-in time" in higher volume

I did it and absolutely don`t regret it. When I got them delivered I was literally excited and so keen plugging them in to saturate my curiosity. Holding them in my hands the first time they really felt solid, valuable, kind of heavy but very well balanced on my head. In some reviews the are described as uncomfortable but the evolution of the model I own now feels very comfy. I was a little worried if the sound could keep up with the haptic joy. So I plugged it into my amplifier and what can I say, I was instantly confuse and absolutely disappointed - I couldn`t believe how aweful the sound was. But due to my experience with other earphones I new that most of the changed their sound after a certain time of "break-in time". So I decided giving the headphone another chance and let it play for about 24 hours at the beginning under moderate volume getting step by step louder in the course of the following 24 hours. Then I tried listening them again and: Oh boy what can I say it was a completely different headphone playing very neutral in it`s best way - the change was absolutely incredible to me. And in the course of the next weeks the sound even improved. It provides a wonderful stage, awesome authentic sound revealing weaknesses in the recordings but similarly rewarding good or excellent with the with clear hights, deep bases and natural voices - all together well balanced balanced and convincing accentuated in a way I want to describe as "neutral" in its` best interpretation.

The History of Koss

The history of Koss spans over 60 years of ingenuity, integrity & innovation. #TheOriginal