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  • Product Name: Automatic Digital High-speed Feedback Suppressor
  • Model No.: HS3380AD

Feature

   Self-adaptive filter can switch between quick mode and exact mode.The former is used in the association that microphones position is not fixed,for example,a pluggable conference system has more than 2 microphones and switch to active.The latter is used in the association that microphones position is fixed,for example,a training platform has a stable acoustics environment.

   Self-adaptive filter can astringe in a slow speed to restrain more reflection elements.It can get as many as 12db gain before acoustic feedback happens,and it also up to its acoustics environment and the operation mode chose.

   Self-adaptive filter is built-in automatic mixer for two lines of microphones input, then system will automatically low the gain of weaker signal of microphone input, and up the gain of the other microphone.Therefore,it can follow the moving speaker and make the tone best and the clearest. At same time,because the gain keeps a total balance,it protects maximum gain amount which ensure that cannot product acoustics feedback. Even not use feedback control,the automatic mixer function still works.

Specifications

· voltage 230/115 VAC,±10%,50/60 Hz

· input level 1.5 A,230 VAC / 3 A,115 VAC

· max power 50 VA

· sampling: (fs) 32 kHz

· Frequency response: 125 Hz - 15 kHz

· distortion:< 0.1 %(1 kHz  hour)

· gain(bypass mode): 0 dB  line input,24 / 36 / 48 dB mic input

· gain(activate mode): 0 dB line input,24 / 36 / 48 dB mic input

· S/N:> 90 dB

· signal delay:< 11 millisecond

· Decorrelator: frequency shift,as more as 5 Hz noise shielding

· mic/line input:1

· connector:3 pin XLR,5 pin DIN,balance

· max level:18 / 6 / -6 dBV line input, -18 / -30 / -42 dBV microphone input

· impedance:10 kΩ / 2 kΩ(line / microphone)

· CMRR :>25 dB(50 Hz - 20 kHz)

· phantom power:16 V(mic only,switchable)

· priority control:circle,DIN pin 4 and 5

· microphone  input:1 x

· max level:-18 / -30 / -42 dBV

· impedance:2 KΩ

· weight:3kg

· size: standard 1U