QD20S small dome audio pickup, designed for audio monitoring, the advantages of big monitoring range and high sensitivity.
Dome appearance, the surface design with four line lattice, better to collect environment sound within 10-60 square meters.
Internal circuit with AGC gain control and power amplification circuit, maximumly eliminate the noise, to guarantee the output intensity.
Using directional logic dolby surround sound system, effectively reduce the high frequency and low frequency noise of environment and circuit.
Built-in lightning protection, power supply polarity reverse connect protection, ESD protection and power protection module.
Long audio signal transmission technology, Long audio signal transmission technology,use the RVVP3 x 0.5mm2 shield cable, it is distortionless within 3km.
Integrated professional front audio amplifier circuit, direct drive active speakers, DVR, earphones, etc.
|Audio Monitor Range||10-60 square meters (adjustable)|
|Audio Transmission Distance||3000m|
|Dynamic Range||104dB (1KHz at Max dB SPL)|
|Max Sound Pressure||120dB SPL(1KHz,THD 1%)|
|Output Impedance||600 ~ 1000Ω non-equilibrium|
|Microphone||Electret condenser microphone|
|Signal Processing Circuit||Directional logic dolby surround sound system, AGC, ALC|
|Protective Circuit||Lightning protection, power supply polarity reverse connect protection,
|Connection Way||AV wiring system (DC female,RCA)|
|Transmission Cable||RVVP3*0.5mm2 shield cable|
(recommend to use 12V, more than 500 meters recommended 15v)
|Housing Material||Advanced resin PVC|
|Place of Origin||Guangzhou, China|