Koss QZ-99 Noise Reduction Stereophone

Other products by Koss

Product Details

• Product Dimensions: 9 x 95 x 9 inches ; 1.6 pounds
• Shipping Weight: 2 pounds (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B000051SD1
• Item model number: QZ99
• Average Customer Review: 4.2 out of 5 stars See all reviews (33 customer reviews)
• Amazon.com Sales Rank

  Popular in these categories: (What's this?)

  #33 in	Electronics > Accessories & Supplies > Headphones > Noise-Canceling Headphones
  #39 in	Electronics > Accessories & Supplies > Headphones > Over-the-Head Headphones

• Discontinued by manufacturer: Yes
• Date first available at Amazon.com: September 4, 1973

Product Description

Amazon.com Product Description
The Koss QZ99 headset is a passive noise-reduction stereophone system that isolates the listener from ambient sounds, allowing clear and focused listening of the intended aural signal. Ideal for use with racing scanners and metal detectors, it includes a volume control on the earcup for easy level adjustment, a stereo/mono switch for added flexibility, and a single entry, 8 foot coiled cord.

Product Description
The QZ-99 Noise Reduction Stereophone features revolutionary Passive Noise Reduction stereophone system that isolates listener from ambient sounds. It is ideal for use with racing scanners and metal detectors. The features include volume control on earcup for easy level adjustment, Stereo/Mono switch for added flexibility and single entry, 8 foot coiled cord.

See all Product Description

Customer Reviews

Most Helpful Customer Reviews

13 of 13 people found the following review helpful:

4.0 out of 5 stars Excellent for listening to narration, March 18, 2002

By A Customer

The Koss QZ-99 is a very nice product, for certain things. I would never recommend this type of product, without knowing the context. I use it for listening to books on tape, on the street or in a gym, on an old portable tape player. Since I am just listening to narration, I care much more about outside sound being blocked out than I care about sound quality. If you use Bose headphones in this context, you are going to get much better sound, but that is a drawback: you will hear the crackles and rattles and pops on the your 8 year old Walkman and the 5 year old library book-on-tape. Noise reducing headphones can be too good. If I were listening to classical music on a CD player, in an airplane, a higher quality, and/or active noise reducing product would be better. But for my situation the Koss is very nice. I did not realize, until recently, that I could swivel the ear pads as well a lengthen and shorten the band between the pads. It works very well.

15 of 17 people found the following review helpful:

3.0 out of 5 stars They work(ed) great - PART II, February 20, 2002

By	B. W. Chandler II "brucewayne" (Virginia Beach, USA) - See all my reviews (REAL NAME)

I used them daily for two weeks before one ear started shorting out, that ear completely went blank after four weeks. They sure did work great those first 10 days or so.

They look tough but I doubt they could handle a weekend at NASCAR, for which I bought them for. I was using them for music and radio when they shorted out on me.

However, the warranty on them says "Lifetime, No Questions Asked!" ...So I will check that out, send them in, and see what happens. If Koss can get them back to me in a quick turnaround, I'll knock my rating back up to a 3.

BW

I sent them in to the company and got an extremely quick turn-around, back and working good. Next test - NASCAR.

B.

21 of 26 people found the following review helpful:

4.0 out of 5 stars Slightly Sound Proof, September 29, 2001

By	Dale A. Crum Jr. "doc4" (United States of America) - See all my reviews (REAL NAME)

Overall I enjoy these headphones. I love the way the look and feel, the weight of them and the comfort factor. I have only a few complaints; One, they are not as sound proof as I was hoping they would be. Random noises still manage to creep in and disturb the your listening. Two, Although they don't hurt at all to wear for long periods of time, if by chance, someone knocks on the ear piece your in for a world of hurt my friend. Three, I bought a [less expensive] pair of headphones for [a few] dollars and noticed the bass and treble are slightly better than in the KOSS pair. At times I wondered if too much bass would blow them out or if they were really designed for music at all.

I'm not saying KOSS isn't a great headphone maker, but if your looking for something soundproof avoid these headphones. If your looking to block out ambient noise and the majority of sounds then these are definitley yours all the way. Very comfortable and well made, KOSS is an amazing company I was looking for total soundproof protection though. In the end I kept them and still use them for my music. I very much enjoyed this product and highly recommend it to anyone out there.