Beyerdynamic DT 290 用户手册

Transducer type . . . . . . . . . . . condenser (back electret)

Frequency response . . . . . . . . 30 - 18,000 Hz

Polar pattern . . . . . . . . . . . . . cardioid

Output voltage at a distance 

of 5 cm  . . . . . . . . . . . . . . . . . approx. 20 mV

Nominal impedance . . . . . . . . approx. 200 Ω
Load impedance. . . . . . . . . . . ≥ 1000 Ω
Max. SPL . . . . . . . . . . . . . . . . . 125 dB

Current consumption . . . . . . . approx. 3.5 mA

Phantom powering . . . . . . . . 12 - 48 V

Weight . . . . . . . . . . . . . . . . . . approx. 20 g

Frequency response curve ± 2.5 dB           0 dB =  6 mV/Pa