DBK4, pg. 10 958293 DBK Option Cards and Modules
Cut-off(Fc):
18 kHz 9 kHz 4.5 kHz 2.25 kHz
1125 Hz 562.5 Hz 281.2 Hz 141.6 Hz
Flatness DC - 80% Fc: ±0.2 dB
Channel Matching DC - 80% Fc: Phase: ±6°
Accuracy Passband Center: ± 0.5 dB