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KOSS SB45 3.5mm Connector Circumaural Multi-Media Stereophone

  • 18Hz-20KHz
  • 3.5mm Connector
  • 8 feet. Cord Length
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
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A headset so good you can hear the enemy approaching . . from behind! The SB45 from Koss is so well designed, you can hear the swooshing of the bushes as your enemy tries for a surprise attack! This works so well, you may not be able to game without it! Comfortable and designed for hours of wear, these ear cups are large, closed and created to decrease any pressure that may cause pain or discomfort. They fit so well you will not hear any ambient noise to distract you from saving the world!

Koss' Clear Voice Technology delivers a microphone that cancels distracting background noise, so your gaming buddies won't hear your roommate snoring in the background! If your PC uses voice recognition, this id the headset to use, because it will give you the clearest true-to-life voice possible!

This headset is adjustable for all head sizes for optimal comfort! Foldable, it can be taken on the road, for gaming tourneys or to use at other locations. For sound efficiency, comfort and durability, you can not beat the SB45 - especially at this low price! Go ahead-you will regret missing out on this opportunity for a great headset at a phenomenal low price!

  • newegg Maximum Comfort The KOSS SB45's extra-large leatherette ear cushions and adjustable headband deliver maximum comfort perfect for extended listening or gaming periods.
  • newegg Noise-cancelling Microphone Koss' Clear Voice Technology (CVT) noise-cancelling electret condenser microphone effectively blocks unwanted noise for high speech intelligibility.

Learn more about the Koss SB45




Headphone Frequency Response
Headphone THD
Headphone Input Impedance
100 ohm
Headphone Sensitivity
103dB S.P.L. at 1KHz
Ear Coupling
Cord Length
8 feet.


Microphone Frequency Response
Microphone Sensitivity
-56dB +/- 3dB per 1V/ 1KHz; (-36dB +/- 3dB, V/Pa)


The SB45 features a dynamic element constructed of anisotropic ferrite magnet structures the deliver high sensitivity and reduced distortion for premium sound at all volume levels. Incorporating a frequency response of 18Hz - 20,000Hz, the SB45 delivers a full-range of sound that will bring your favorite games to life. Utilizing oxygen free copper voice coils for improved signal transmission and conduction, sound comes through loud and clear.

Whether you're alone or online, the SB45's sound will be so efficient that you'll hear your opponent before they even know you're there. Its large, closed ear cups surround the ear for maximum isolation so you can stay focused on saving the world or kicking a forty-yard field goal.

Soft, leatherette ear cushions envelope your ears without creating pressure for long lasting comfort. Koss' Clear Voice Technology (CVT) noise canceling electret condenser microphone eliminates excessive background noise for a greater ease of use with PC voice applications, such as speech recognition.

The SB45 has an adjustable headband to fit most head sizes. Built of durable plastic, the SB45's headband can stand up to the rigors of daily wear and tear for a fits-like-new feel after years of use. The SB45 also folds up for compact storage to reduce pains from your desktop clutter and to conveniently fit in your briefcase or backpack if you're gaming on the road.

Manufacturer Warranty

1 year limited
1 year limited

Quick Info


  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year

Customer Reviews of the Koss SB45

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  • Jesse D.
  • 9/14/2014 9:57:50 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggs

Pros: -Comfortable for long periods of time
-Cord doesn't tangle (Every headset I've owned prior to these have had this problem. It's refreshing that these don't have that issue, especially at their price point
-Good audio and microphone quality

Cons: Only a slight annoyance is the mic is a little wobbly when in the upright position and tends to move around. Along with this, the quality of the microphone can be spotty if in the wrong position. But moving it slightly has always remedied the problem.

Other Thoughts: Owned these for probably 3 years. They're still going strong and can't be beaten for their price point.

Did you find this review helpful? Yes No

  • Roberto H.
  • 12/1/2013 9:48:56 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsGood but cheap

Pros: Great bass, great treb, overall great sound.

Pretty comfortable as well.

Cons: Cheap, so you get what you paid for. It broke a few months after I got it.

Cord get's twisted, tangled, and run-over constantly.

0 out of 1 people found this review helpful. Did you? Yes No

  • Dale N.
  • 9/14/2013 12:43:41 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

2 out of 5 eggsWas fine until left headphone died..

Pros: The sound quality of the mic was fine, and the sound quality of the speakers were fine for gaming.

Cons: The microphone seems like it would one day break off with how it is attached. The left speaker died after 2 weeks.

Other Thoughts: I may have gotten unlucky with this headset. A defected headset could come from the factory of any modern day product, cheap or expensive. Although my first try on these makes me not want to get another pair. A two week life is pretty bad.

1 out of 1 people found this review helpful. Did you? Yes No

  • Thomas W.
  • 6/13/2013 9:47:37 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

3 out of 5 eggsQuick sound quality review

Pros: I bought these 4+ years ago as my second headset ever and it worked well for that short duration before I upgraded to something better. Gold plated jacks, folds up easily, comfortable, good oval ear cups. Now for the sound quality, I recommend these for customer service, vocal applications.

Cons: I DO NOT recommend these for music or gaming. They have no bass punch and the treble gets really piercing at high volumes. I would consider them "hollow" sounding.

I haven't tested durability because they weren't put under much use.

No in-line volume control or mute. No detachable mic.

Other Thoughts: I've owned this headset for probably 4+ years. I think it was the second headset I ever bought for $20. For $20 it's worth it. For $40, I'd look at something else in the price range. Since then, I've moved on to Creative Fatal1ty (recommended), Razer Carcarias (comfortable), Audio-Technica ATH-M50 (fantastic), Beyerdynamic DT770 Pro (superb). The last two aren't headsets but headphones, I used a mic attached. I recommend the Creative if you are on a budget (should be around same price range as these) or the other headphones for well just headphones.

4 out of 4 people found this review helpful. Did you? Yes No

  • Israel S.
  • 6/13/2013 11:16:05 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsNot really happy

Pros: They work as advertised.

Cons: Cable shorted at the base of the earphone connection already!

Other Thoughts: These things have been BABY handled and still shorted out at the connection point.

I only hope KOSS honors their 1 year warranty....

1 out of 1 people found this review helpful. Did you? Yes No

  • Timothy M.
  • 5/14/2013 12:20:43 AM
  • Tech Level: High
  • Ownership: more than 1 year

5 out of 5 eggs100 ohm

Pros: Awesome for the price.

Cons: Mic is average at best.

Other Thoughts: This is a 100 ohm headset. You need more than onboard motherboard sound to push these headphones. If you don't have a dedicated soundcard with a headphone amp, they'll sound thin and weak. Although, if you've got the power to push them, they sound awsome for the money.

2 out of 3 people found this review helpful. Did you? Yes No

  • Matthew B.
  • 2/28/2013 9:36:36 AM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsDoes the job

Pros: Worked right on plug-in. Sound is about what I expected for the price. Not the best headset I have owned but it will do the job. 8' cord is great.

Cons: Does not sync to aftermarket Dolby Digital USB.

Did you find this review helpful? Yes No

  • Lawrence T.
  • 2/7/2013 3:18:51 PM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

2 out of 5 eggsWorst headset for gaming out there

Pros: Low price, lightweight so it's easy to throw into the trash

Cons: These SUCK. They are listed as Circumaural -- LIE. They do NOT have some necessary gaming features -- no clip to attach to shirt, no mute, no volume control on cable (or on individual ears for that matter), their upper range is VERY low volume and the bass resolution is sorely lacking. Finally, when, after owning them for LESS than a month, and the jack started stripping, I was told, TOO BAD. NEVER buying Koss again.

0 out of 3 people found this review helpful. Did you? Yes No

  • Brian B.
  • 1/3/2013 10:35:55 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsGood, but broke quickly

Pros: Good sound and mic quality

Cons: After 4 months of ownership, the mic stopped working. I heard Koss products were of good quality, and this is a terrible dissapointment.

Did you find this review helpful? Yes No

  • Ryan L.
  • 11/6/2012 2:23:23 PM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggs

Pros: works great.
feels good.

Cons: when trying to put them on my head the socket that holds the earphone to the headband broke and the other side went only a week after. I had it for a couple months before this happened.

Did you find this review helpful? Yes No

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