Koss PRO-4AAT Consumer Headphones

This Pro4AAT DJ is a full-size professional quality Koss stereophone has long been the headphones of choice for broadcast and recording professionals whose careers demand reliable equipment and superior performance. As the first dynamic stereophone to deliver true full frequency, high-fidelity performance, the PRO4AA set the standard when it was introduced in its original form in 1970.In the late 1980s after long service, it was retired and replaced by a newer model. Customers clamored for its return, and by 1988 it was brought back by popular demand. Since then, though we've incorporated performance- enhancing technology and updated its style, the essence of the PRO4AA remains unchanged and it continues to set the standard for performance and reliability today.The PRO4AA Titanium features dynamic elements for an exceptionally wide frequency response. A 2mil. titanium coating on its diaphragms increases the rigidity of the element, minimizing mechanical distortion and ensuring exceedingly accurate sound reprod