Koss - Pro/4AAA Closed-Back Dynamic Studio/Audiophile Headphone

Classic high-fidelity headphones, manufactured in the mid-1970s, became very popular among audiophiles and studios. Frequency response: about 10 Hz - 22 Hz. Built very robust and durable, with excellent passive acoustic isolation, due to the ear pads providing a tight seal. With a balanced sound, featuring crisp bass and natural mids, weighing about 700-800 grams. This item is carefully packaged.