FBK-4

FBK-4 is an automatic feedback canceller processor designed for live applications. It consists of two channels featuring each 24 static and dynamic filters. Static or fixed mode automatically selects and adjusts filters to eliminate the feedback effect usually caused by room acoustic defaults. This mode can use up to 24 filters depending on the number of frequencies to be attenuated. Dynamic or live mode continuously detects and eliminates feedback occurring during a performance like a microphone moved too close to speakers. It uses the remaining available filters from the static mode. The correcting filters are released when they are no more necessary and become available for a new correction.

MODEL	FBK-4
Sample Rate	48kHz
Dynamic Range	106 dB, A-weighted
THD+N	0.01%, 1kHz
S/N Ratio	106 dB, A-weighted
Frequency Response	20Hz~20kHz,  ±0.5dB
Inter Channel Crosstalk	86 dB, A-weighted
Crosstalk Input to Output	86 dB, A-weighted
Operating Voltage	230 VAC 50/60Hz, 115 VAC 50/60Hz
Power Consumption	15W
Physical
Dimension	483 x 195 x 44mm
Net Weight	3.1kg
A/D Performance
Dynamic Range	114 dB, A-weighted
A/D Conversion	24bit
D/A Performance
Dynamic Range	114 dB, A-weighted
D/A Conversion	24bit

 

Analog Inputs
2 x female XLR and 2 x ¼” TRS	Electronically Balanced / Unbalanced
RF filter suppressor
Input Impedance	3.6kΩ
Max Input line level	+15dBu
Analog Outputs
2 x male XLR and 2 x ¼” TRS	Electronically Balanced / Unbalanced
RF filter suppressor
Output Impedance	120Ω
Max Output level	+15dBu