Leicozic Professional Feedback Suppressor Digital Automatic Signal Processing Equipment 

Signal Speaker Processor Karaoke Outdoor Stage System

FBX220 & FBX440 Feedback Suppressor

These machine adopts new DSP digital processor technology, which is characterized by fully automatic anti-whistling, high sound quality reduction, and easy to solve the annoying problem of acoustic feedback caused by the use of a microphone.

Suitable for: meeting rooms, multi-functional entertainment halls, small and medium-sized performances, KTV rooms, home theaters.

◎FBX220：2-input and 2output design；FBX440：4-input and 4output design.

◎Each channel has volume control and a new type of rotating indicator. It is convenient to see the volume control size to prevent the volume from being too loud and distorting.

Note:the respective indicators of the light color are: green for normal use, yellow for distortion, and red for extreme danger indicators.

◎Each channel has a frequency indicator to help users clearly see the volume limit during use.

◎Multi-type sockets for input and output, XLR and 6.5 can be selected for use.

◎Automatically enter the anti-howling mode when booting.

◎Each channel corresponds to input and output, and the input adopts a new multi-function socket, including (CANNON) XLR and 6.5

◎Using American DSP chip and digital processing system.

◎With 68 filter points set in the DSP processor for automatic scanning.

◎1 and 2 channels use 1 DSP processor to set up 68 filters for distribution.

◎Automatic dynamic filtering is used to prevent howling, and the anti-howling is activated without affecting the sound quality.

◎Every time the notch is activated, the howling is suppressed, and the balance point is restored within 2 seconds.

◎This machine has a critical point automatic compression limit function. In order to prevent signal overload from causing distortion or damage to the equipment, when the sound is too loud, while suppressing howling, the compression limit starts to suppress part of the sound to prevent damage to the speaker equipment.

◎When the volume returns to normal, the pressure limit will slowly recover. Under normal use, the compression limit function does not start and does not affect any use.

Power supply mode: 220V/110V

Sound transmission gain: -1db or 11db

Line input impedance: 15kΩ

Line output impedance: 300Ω

Frequency response: 80Hz-15KHz

Signal to noise ratio: 82db