1. 50 00 200 500 1k 2k 5k Ok 20k Hz Frequency in Hertz 50 00 200 500 1k 2k 5k Ok 20k Hz Frequency in Hertz Imm AT845Ra AT845WRa 30 20 000Hz 50 12 000Hz OdB 1V Pa 1kHz 0 UE A 1kHz at 19 T HD 149dB S P L S N 1kHz at 1Pa 2000 2000 DC11 58V DC11 58V I 1mA ImA 2. AT845Ra AT845RWa AT847Ra AT847RWa audio technica 28 lm 09 LU NS 09 wa EE M20 P 1 lt AT845Ra AT845RWa AT847Ra AT847RWa mm AT845Ra AT847Ra 0 RF AT845Ra AT845RWa 0 330 30 TT 8 10dB EE 3. 68 i AA 149dB S P L 64dB 65dB Waud io technica 7 mm http www audio technica Cojp proaudio 142311400 2007