
AF220 feedback suppressor
24BIT high-performance A/D and D/A conversion. Fast, medium, and slow response times can be set at 3 speeds, and the Q value of the notch filter is automatically selected. Its power is not limited to this, the noise gate function can suppress weak noise interference in the system, it has input compression function, eliminates feedback, and can also expand vocal dynamics. Each channel has a gain of -64dB to+6dB. Each channel is equipped with four frequency shift options, which are used in conjunction with a notch filter to achieve outstanding anti whistling effects.
Characterization
24BIT high-performance A/D and D/A conversion. Fast, medium, and slow response times can be set at 3 speeds, and the Q value of the notch filter is automatically selected. Its power is not limited to this, the noise gate function can suppress weak noise interference in the system, it has input compression function, eliminates feedback, and can also expand vocal dynamics. Each channel has a gain of -64dB to+6dB. Each channel is equipped with four frequency shift options, which are used in conjunction with a notch filter to achieve outstanding anti whistling effects.
Parameter
Analog input 2CH-XLR and 1/4 "TRS (female) input, electronic balance/imbalance
Input impedance balance 47K Ω, imbalance 20K Ω
Large line level input+18dBu
Analog output 2CH-XLR and 1/4 "TRS (female) input, electronic balance/imbalance
Output impedance balance>120 Ω, imbalance>60 Ω
High output level+15dBu
Frequency response 20Hz-20KHz, ± 0.3db
Signal to noise ratio>102db (A)
Sensitivity Mic: -20dB/1KHz Line: 0dB/1KHz
Total harmonic distortion+noise 103db
Dynamic range 0.007%, 1KHz; 20Hz-10KH,<0.01%; 10KHz-20KHz,<0.025%
Working voltage 110V/220V/AC 50Hz/60Hz
Interface input 3-core XLR female socket/6.3 socket output 3-core XLR male socket/6.3 socket USB interface power socket 3-core IEC socket power supply 100-240V 50/60Hz, power consumption<30 watts
Net weight 2.3KG
* Page content update time:2025-11-17 14:08:52,The relevant information on the website is for reference only. All products are subject to physical inspection and are subject to change without prior notice.




