Koss Pro4AAA Titanium Studio Headphones

| Mfg # PRO4AAAT
| UPC #
Our Price: $149.99
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Koss Pro4AAA Titanium follow a longstanding tradition of excellence while simultaneously raising the bar for headphones. These professional headphones are designed specifically for broadcast and recording professionals who enjoy lasting comfort coupled with high-end quality. The Pro4AAAT helps isolate noise while producing great sound bass, ultimate treble clarity and superior sound intensity.  

Koss Pro4AAATs feature closed, vinyl Pneumalite ear cushions with a favorably tight seal. This greatly improves noise isolation and maximizes bass. So when you use the Pro4AAAT at home or in studio, you’ll always enjoy exceptional comfort, unparalleled durability and most importantly, a deeper connection to your music through the Sound of Koss.

  • Noise-isolation headphones
  • Closed, vinyl Pneumalite™ ear cushions for improved isolation
  • Extra-wide adjustable steel and rubber headband design maximizes comfort
  • Computer-optimized ferrite magnet structures deliver deep bass
  • Coiled, single entry 8 foot cord and 3.5 mm plug with 6.3 mm adapter included
  • Ear cups fold flat for portability; lightweight carrying case included
  • Covered under the Koss Stereophones Limited Lifetime Warranty
  • Frequency Response: 10-25,000 Hz  
  • Impedance: 250 ohms
  • Sensitivity: 98 dB SPL
  • Cord: Coiled, Single Entry, 8ft

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Product Warranty Information


All instruments in our catalogs and on our shopping site carry the manufacturers' warranties against defects in parts and workmanship. Should a defect occur within the manufacturer's warranty period, contact us immediately.

We will be glad to help facilitate the repair or replacement as specified by the manufacturer. The manufacturer will determine whether the defect is covered under their warranty; we do not make that determination.

Please note: U.S.-based manufacturers WILL NOT honor warranties for items sold and shipped outside the U.S. Also, if a school, school district, or board of education purchases an instrument and resells it to an individual, the manufacturer considers the warranty to be void. Warranties are extended only to the original purchaser!

All warranties, stated or implied are held with the product manufacturer and they vary from item to item. Consult the documentation that came with your product for details in addition to the information below.
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In 1953, John Koss began Koss Corporation by renting television sets to Milwaukee area hospitals, and soon turned his eye and ear to the budding Hi-Fi industry, creating the first Stereo- phone. Today, there is a quality Koss Stereophone for every personal listening need.