Category
- Audio monitoring equipment
- MX audio monitoring
- S-- audio monitoring
- C-- audio monitoring
- QD audio monitoring
- SIZ audio monitoring
- Voice intercom system
- IP network intercom
- Window intercom
- Full-duplex voice intercom
- Network video conference system
- Conference microphone
- Computer Microphone
- Audio monitoring Accessories
- Power Adapter
- Mobile phone signal shielding device
- Custom audio module
- Under construction......
Customer service
COTT-QD28 Fidelity Audio Monitor
Adapterization Area:10-120㎡(adjustable)
Audio Transmission Distance:3000m
Frequency Response:20Hz~20KHz
Sensitivity:-40dB
SNR:80dB(1m40dB) 60dB(10m40dB) 1KHz at 1Pa
Directional Property:Omnidirectional
characteristic:Equipped with high-pass filtering noise reduction circuit, effectively reduce the high frequency and low frequency noise of environment and circuit
Industry application:Applicable to television broadcasting, TC Teleconference, classrooms and any places need to monitoring
Audio Transmission Distance:3000m
Frequency Response:20Hz~20KHz
Sensitivity:-40dB
SNR:80dB(1m40dB) 60dB(10m40dB) 1KHz at 1Pa
Directional Property:Omnidirectional
characteristic:Equipped with high-pass filtering noise reduction circuit, effectively reduce the high frequency and low frequency noise of environment and circuit
Industry application:Applicable to television broadcasting, TC Teleconference, classrooms and any places need to monitoring
- Product Overview
- Detailed parameters
- Data download
Characteristic
● COTT-QD28 Fidelity Audio Pickup,designed for audio monitoring, the advantages of large monitoring range and high sensitivity.
● Gold-plated vibration membrane microphones,5~120㎡ in high fidelity, high sensitivity, high bandwidth and low noise.
● Built-in AGC and DTS noise reduction signal processing circuit, automatically adjust high strength voice and instantaneous impact sound.
● Built-in newest DNP and DSP digital processing unit, completely eliminate "hiss" electronic noise.
● Equipped with high-pass filtering noise reduction circuit, effectively reduce the high frequency and low frequency noise of environment and circuit.
● 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.
● Applicable to television broadcasting, TC Teleconference, classrooms and any places need to monitoring.
● 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.
Wiring Instructions

● COTT-QD28 Fidelity Audio Pickup,designed for audio monitoring, the advantages of large monitoring range and high sensitivity.
● Gold-plated vibration membrane microphones,5~120㎡ in high fidelity, high sensitivity, high bandwidth and low noise.
● Built-in AGC and DTS noise reduction signal processing circuit, automatically adjust high strength voice and instantaneous impact sound.
● Built-in newest DNP and DSP digital processing unit, completely eliminate "hiss" electronic noise.
● Equipped with high-pass filtering noise reduction circuit, effectively reduce the high frequency and low frequency noise of environment and circuit.
● 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.
● Applicable to television broadcasting, TC Teleconference, classrooms and any places need to monitoring.
● 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.
Wiring Instructions


Adapterization Area
10-120㎡(adjustable)
Transmission Distance
3000 m
Frequency Response
20Hz~20kHz
Sensitivity
-40dB
SNR
80dB(1m40dB) 60dB(10m40dB) 1KHz at 1Pa
Directional Property
Omnidirectional
Dynamic Range
104dB (1KHz at Max dB SPL)
Max Sound Pressure
120dB SPL (1KHz,THD 1%)
Output Impedance
600 ~ 1000Ω non-equilibrium
OutputSignalAmplitude
2.5Vpp/-25db
Microphone
BOURNS large gilded vibration membrane microphones
Microphone Quantity
1pcs
Signal Processing
DSP,AGC,ALC
Protective Circuit
Lightning protection, power supply polarity reverse connect protection,ESD protection
Connection Way
3 leading wires(red lead is power positive wire,white lead is audio positive, black is public ground wire)
Transmission Cable
RVVP3×0.5mm2 shield cable
Supply Voltage
DC10V~18V (recommend to use 12V, more than 500 meters recommended 15 v)
Working Current
50mA
Working Environment
-25℃~70℃
Color
White
Housing Material
Advanced resin PVC+Spray diffusion coating
Product Size
80mm×36mm
Weight
41g
Place of Origin
Guangzhou,China
Supply Ability
Spot Goods
Approvals
CE,ROHS,FCC, ISO9001
- No Information
Recommended products
COTT-QD25 High-fidelity Audio Monitor
COTT-QD28 Fidelity Audio Monitor
COTT- QD30/S HD Pinhole Audio Monitor
COTT- QD35 HD Mini Audio Monitor
COTT-QD40 original sound audio monitor
COTT-QD50 Dome Audio Monitor
COTT-QD55 Circular HD monitor pickup mic
COTT- QD15 Mushroom Audio Monitor
COTT-QD60 High Sensitivity Monitor Pickup Mic
COTT- QD20/S Small Dome Audio Monitor