Semi-open headphones meeting the Institute of Radio Technology standards.

The K 240 DF follows the criteria specified by the Institute of Radio Technology (IRT) in Munich for a "diffuse field" equalization curve that provides headphone listeners with the sound pattern, characteristic of a room with reflective, non-anechoic surfaces. Each K 240 DF is rigorously tested to assure strict adherence to the IRT standards for frequency response, channel separation and sensitivity.

TYPE: Semi-open, Circumaural
FREQUENCY RESPONSE: 15 Hz - 20 kHz
SENSITIVITY: 88dB/mW
IMPEDANCE: 600 Ohm
WEIGHT: 240g (8.5 oz.)

LOY