Headphone
Headphone Transducer type: . . . . . . . . Dynamic
Operating principle: . . . . . . . . . . . . . . .Closed
Frequency response: . . . . . . . . . . 30 – 20,000 Hz
Nominal impedance: . . . . . . . . . . .50 Ohm +- 10% per cartridge*
Nominal SPL at 1 kHz: . . . . . . . . . . . 94 dB
T.H.D.: . . . . . . . . . . . . . . . . . . . . . . < 1%
Power handling capacity: . . . . . . . 1000 mW 124 dB
Ambient noise attenuation: . . . . . . . . .approx. 20 dBA
Sound coupling to the ear: . . . . . . . . Circumaural
Headband pressure: . . . . . . . . . . . . . .approx. 4.5 N
Weight (without cable): . . . . . . . . .283 g
Microphone
Transducer type: . . . . . . . . . . . . . . . .Dynamic
Operating principle: . . . . . . . . . . . . .Pressure gradient
Frequency response: . . . . . . . . . . . . 40 12,000 Hz
Polar pattern: . . . . . . . . . . . . . . . . . . Hypercardioid
Output voltage: . . . . . . . . . . . . . . . approx. 2.5 mV at a distance of 5 cm
Nominal impedance: . . . . . . . . . . .200 Ohm
Load impedance: . . . . . . . . . . . . . . . >= 1000 Ohm
