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Koss Pro-4 AAT Professional Stereo Headphones

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Koss Pro-4 AAT stereo headphones celebrate the 25th anniversary of their modern-classic Pro-4AA stereophones. This modern adaptation of the Pro 4AA headphones deliver accurate sound and a comfortable,... Click To Read More About This Product

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Koss Pro-4 AAT stereo headphones celebrate the 25th anniversary of their modern-classic Pro-4AA stereophones. This modern adaptation of the Pro 4AA headphones deliver accurate sound and a comfortable, fatigue-less feel with reliable durability. With professional features and high-quality materials, the Koss Pro-4 AAT delivers unmatched sound neutrality in its price range.

The Pro-4 AAT's improved cup design is extremely isolating and enhances signal fidelity. Titanium-coated, high-polymer diaphragms provide accurate sound reproduction with a frequency response of 10-25,000Hz. Innovative closed-ear design provides great response and isolation while oxygen-free copper voice coils give excellent signal clarity. Has a coiled, single entry 8' cord and 1/8" plug with 1/4" adapter.


Frequency response: 10Hz”25kHz
Titanium-coated, high-polymer diaphragm
Closed ear cushions
Maximum durability
Oxygen-free copper voice coils
Coiled, single-entry 8 ft. cord with 1/8" plug and 1/4" adapter
Impedance: 250 ohms
Weight: 21.0 oz.
Sensitivity: 95dB SPL/mW
Distortion: <0.1%
Pro Coverage
This Koss product has a Lifetime Limited Warranty which covers normal use by the initial user or purchaser of this particular Koss product. Koss hereby warrants only to the initial user or purchaser that this Koss product will be free of any defect in materials and workmanship for the life of the product. This warranty does not apply to any INITIAL USER OR purchaser who allows this product to be used by multiple PERSONS. This warranty is the sole and exclusive warranty for this Koss product and is in lieu of all other warranties (express or implied), including any warranty of merchantability or fitness for a particular purpose. The sole and exclusive remedies available to the initial user OR PURCHASER for any defects in materials or workmanship shall be the obligation of Koss, at its sole option, to either refund the purchase price of the Koss product, or repair or replace the non-functioning or defective Koss product provided it is returned to Koss in secure packaging together with a check for $6.00 ($7.00 Canadian) to our factory at 4129 N. Port Washington Ave, Milwaukee, WI 53212. If purchased outside the U.S. contact the local Koss Authorized Dealer for details. Koss reserves the right to replace any discontinued product with one of equal value. Koss shall not be liable for any loss, injury or damages to persons or property resulting from the use of this product or any failure of or defect in this product, nor shall Koss be liable to the initial user of this product or to any other person or entity for any general, special, direct, indirect, incidental, consequential, exemplary, punitive, or OTHER DAMAGES of any kind or nature whatsoever. The repair or replacement of any non-functioning or defective product or the refund of the purchase price, at Koss' option, shall constitute Koss' only liability to the initial user or purchaser, whether such liability is based on contract, tort, strict liability or otherwise. Some states may not allow the exclusion or limitation of damages set forth herein in which case the above language may not apply to you. This limited warranty gives you specific legal rights and you may also have other rights which may vary among states or provinces. If usage of this Koss product violates the guidelines of this limited warranty, Koss will repair the product and charge the purchaser for the cost of company time and materials.

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