The headphones shall be a circumaural, semi-open design with a self-adjusting headband. The headphones shall be designed for high quality monitoring. The headphones shall meet the following performance criteria: frequency range: 15 to 20,000 Hz, diffuse-field equalization to IRT standard, sensitivity: 88 dB SPL at 1 mW, electrical impedance: 600 ohms/channel, power handling capability: 200 mW. The headphones shall be fitted with a 3 m single cable terminated in a 1/4" adapter jack. The net/shipping weight of the headphones shall be 290/434 g (10.2/15.2 oz.).
