Dual-Core Enhance Noise Reduction CCTV Microphone MX-K70

  • Pickup Area: 10-200㎡(adjustable)
  • Transmission Distance: 3000M
  • Frequency Response: 20Hz~20KHz(90dB sound pressure, A weighting)
  • Sensitivity: -24dB(10.0mV e 1V at 1Pa)
  • SNR: 90dB(1m40dB) 80dB(10m40dB) 1KHz at 1Pa
  • Directional Property: Omnidirectional
  • Dynamic Range: 105dB (1KHz at Max dB SPL)
  • Equivalent Input Noise Level: 2.5Vpp/10dB sound pressure(A weighting)
  • Maximum Gain: 70dB
  • Max Sound Pressure: 130dB SPL (1KHz,THD 1% THD, A weighting))
  • Max Voice Output: 2.5Vpp/100dB sound pressure(A weighting)
  • Output Impedance: 600~1000Ω non-equilibrium
  • Output Signal Amplitude: 2.5Vpp/125dB sound pressure(A weighting)
  • Coding Scheme: 24K PCM/I2S
  • Processing Converter: 24BIT (64/128 times of sampling)
  • Noise Reduction Ability: 10~36dB
  • Core Processor: FPGA dual core digital enhanced noise reduction
  • Microphone: KaBoni Advanced digital double MEMS silicon microphones
  • Microphone Quantity: 2pcs
  • Signal Processing Circuit: Triangulation, WDRC, FPGA dual core processor, ATDA dynamic noise level detection
  • Protective Circuit: Lightning protection, power supply polarity reverse connect protection, ESD protection
  • Connection Way: 3 leading wires(red power lead is positive wire, white audio lead is positive, black is public wire)
  • Transmission Cable: Telephone wire, network twisted pair, shield cable(pls use shield cable in complex electromagnetic enviroment)
  • Supply Voltage: DC9V~20V (recommend to use 12V, more than 500 meters recommended 15V)
  • Working Current: 50mA
  • Electromagnetic Compatibility: GB 9254-2008
  • Reliability Index: MTBF≧80000 hours
  • Working Environment: -40℃~75℃
  • Color: White
  • Housing Material: Aluminium alloy+double metal net
  • Product Size: 93mm×30mm
  • Weight: 280g
  • Place of Origin: Guangzhou, China
  • Supply Ability: Spot goods
  • Approvals: CE, ROHS, FCC, ISO9001

MX-K70 Parameters

Product Overview

● MX-K70 dual-core enhance noise reduction CCTV microphone, professional dual-core speech noise reduction processor, restore HD live sound.
● Adopt double metal net riot design and the structure of the slider hanging tenon type design, easy to ceiling or side wall installation.
● Using KaBoni advanced enhanced digital MEMS silicon microphones, 10-200㎡ in high fidelity and no noise.
● Using FPGA dual-core digital noise reduction core, ATDA dynamic noise level detection, adaptive bandpass filter.
● Adopt "Wide dynamic range compression " patent technology, realize the WDRC Wide dynamic range compression.
● Use "Triangulation" array multistage dynamic noise reduction processing, enhance processing capacity, highly restore voice.
● Built-in voice high-speed DSP digital processing unit, integrated professional AGC and DTS noise reduction signal micro processing circuit.
● Built-in 24BTT speech processor, Max 30dB adaptive noise reduction ability, intelligently reduce background and environment noise.
● Built-in AEC super echo elimination technique, digital EQ function, and 64/128 times of sampling, the high sampling precision.
● Built-in lightning protection, power supply polarity reverse connect protection, ESD protection and power protection module.
● Long audio signal transmission technology, use the RVVP3 x 0.5mm2 shield cable, it is distortionless within 3km.
● Applies to -40℃~75℃ in the super environmental temperature, to ensure the quality of the back-end high recording effect.
● Integrated ASIC front audio amplifier circuit, direct drive active speakers, DVR, IP cameras, etc.
● Applicable to the police department, supervision, court, recorded broadcast classroom and other complex environment of synchronous audio monitoring recording.
● Gain patent certificate of State Intellectual Property Office of The People's Republic of China.
● Gain computer software copyright of National Copyright Administration of The People's Republic of China.


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