Koss PRO3AA

The PRO3AA Titanium features dynamic elements for a wide frequency response from 15-20,000 Hz. A 2 mil. titanium coating on its diaphragms increases the rigidity of the element, minimizing mechanical distortion and ensuring exceedingly accurate sound reproduction. One-inch (25.4 mm) diameter oxygen-free copper voice coils improve signal transmission and conduction for cleaner, clearer sound. To capture every note and prevent sound from leaking through, closed leatherette earcushions form a comfortable seal around the ears, enhancing bass frequencies and isolating the listener from ambient noise.

Designed for frequent use over extended periods, the PRO3AA's durable steel and rubber headband is padded and features adjustable slide bars to ensure a snug fit --critical for hearing every note and keeping unwanted sounds out. The PRO3AA's earcups fold up for protective storage and portability. A heavy-duty, single-entry eight-foot straight cord affords ample flexibility of movement. A 3.5 mm (1/8") plug and a 6.3 mm (¼") adapter, both with gold-flashing, are included.

Frequency Response : 15-20,000 Hz
Impedance : 60 ohms
Sensitivity : 100 db SPL/1mW
Distortion : < 0.1%
Cord : Straight, Single Entry, 8ft