Your position: Home > Products > Conference System
Feedback suppressors
GF-FB721
(1). Power switch.
(2). Signal output 1 level indicator and volume adjustment potentiometer.
(3). Signal output 2-level indicator and volume adjustment potentiometer.
(4). Signal input level indicator, if the level lights are all lit and turn red, it means that the input level signal is overloaded.
(5). Calibration switch (non-lock switch), press 5 and then let go, calibrate is lit, indicating that it is in the correction state, and the whole process is about 5 seconds.
(6). Bypass/working transfer switch, green light is lit to indicate working status. The red light is lit to indicate the bypass status.



Rated voltage 220V±l0% 50Hz
Frequency response 125Hz~15KHz
Distortion <0.l%@lKHz Signal-to-noise ratio >90dB
The input impedance is 20KΩ
Output impedance (balanced) 200Ω
Temperature range -1 0~55 °C
Operating current 50mA
Rated power 11W
Weight 3.5kg
Dimensions 480mm x 220mm x 44mm


GEFFEN is specialized in processinghigh definition video signals for years. wehave developed and produced a series ofpro video devices, including signalconverter, multi-viewer, optical fiberconverter, signal distribution amplifiersignal generator and matrix switcher, etc.
:Building 3, Baizhong Creative Park, No. 240 Shilian Road, Panyu District, Guangzhou,Guangdong,China
+86 13928186280(Same WeChat/Whatsapp account)
:+86 20-34702140
ADD:Building 3, Baizhong Creative Park, Xinqiao Section, Shilian Road, Panyu District, Guangzhou City   TEL:020-34702140
Geffen Maxtrix Control System Manufactory CN All Rights Reserved 粤ICP备2021023507号