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E-mail
3327257802@qq.com
- Phone
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Address
2nd Floor, Building B, Youbao Industrial Park, No. 17 Xiangshan Road, Science City, Huangpu Development Zone, Guangzhou City
Guangzhou Sizheng Electronics Co., Ltd
3327257802@qq.com
2nd Floor, Building B, Youbao Industrial Park, No. 17 Xiangshan Road, Science City, Huangpu Development Zone, Guangzhou City

COTT- QD30

COTT- QD30S
COTT-QD30/S high-definition pinhole microphoneProduct Introduction
1: COTT-QD30/S is designed for synchronous recording of * industry * systems, with a pinhole design and concealed installation.
2: Advanced resin material "honeycomb sound collection" design, * eliminates "hissing" electronic noise.
3: BOURNS large gold-plated diaphragm microphone head, high fidelity, high sensitivity, high bandwidth, and low noise within 5-50 square meters.
4: The microphone adopts a 0.8mm pinhole design, and its internal resonant cavity has been accurately calculated for clearer sound reception.
5: Dolby omnidirectional logic surround sound standard design, built-in high-speed voice DSP processing unit, two-stage dynamic noise reduction processing.
6: Built in AGC noise reduction signal processing circuit, the concave cavity effectively reduces severe echoes in open rooms.
7: Built in ALC level control circuit, automatically adjusts the high and low intensity of voice and instantaneous voltage and current surges.
8: Ultra long audio signal transmission technology, using RVVP3 × 0.5mm2 shielded cable to transmit 3 kilometers without distortion
9: Integrated professional pre audio amplification circuit, directly driving active speakers, hard disk recorders, headphones, and more.
10: Obtained the certificate of the People's Republic of China.
11: Obtained the copyright of computer software in the People's Republic of China.
12: According to the EU Environmental ROHS Directive 2002/95/EC, construction standards have been established.
13: Through the EU CE standards and the construction specifications for the synchronized audio and video recording system of the Supreme People's Procuratorate.
14: Tested according to relevant standards of the Federal Communications Commission (FCC) and corresponding system construction specifications.
15: Tested by the Security and Police Electronic Product Quality Testing Center.
16: Certified according to the IAF UKAS quality management system standard ISO9001:2008.
COTT-QD30/S high-definition pinhole microphoneProduct Parameters
| project | Performance indicators of microphone |
| Sound pickup area | 5-50 square meters (adjustable) |
| Audio transmission distance | 3000 meters |
| frequency response | 20Hz~20KHz |
| Sensitivity | -40dB |
| Signal to noise ratio | 70dB (1-meter 40dB audio source) 50dB (10 meter 40dB audio source) 1KHz |
| pointing feature | omnidirectional |
| dynamic range | 104dB (1KHz at Max dB SPL) |
| Greatly withstand sound pressure | 120dB SPL(1KHz,THD 1%) |
| output impedance | 600-1000 ohms unbalanced |
| Output signal amplitude | 2.5Vpp/-25dB |
| microphone | BOURNS large gold-plated vibrating diaphragm microphone head |
| Number of microphone heads | Single microphone head |
| signal processing circuit | DSP digital noise reduction, AGC automatic gain control, ALC automatic level control |
| protection circuit | Lightning protection, power polarity reversal protection, ESD protection |
| connection method | 3 leads (red power positive, white audio positive, black common ground) |
| Transmission cable | RVVP3 × 0.5mm2 shielded cable |
| power supply voltage | DC voltage regulation DC10V~18V (* use 12V, greater than 500 meters * 15V) |
| operating current | 50mA |
| ambient temperature | -25℃~70℃ |
| color | white |
| Shell material | Advanced resin PVC+spray diffusion coating |
| Overall dimensions | 63 mm×23mm |
| weight | 25 grams |
| Place of Origin | China, Guangzhou |
| Supply situation | In stock, sample testing available |
| meet the standard | Passed EU CE, ROHS, US FCC certification, quality system *, * certificate, *Copyright of computer software and construction standards for the synchronized audio and video recording system of the Supreme People's Procuratorate. |