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MP3 Preamplifier

MP3 Preamplifier

KT9213

Product features

The KT9213/MP3 preamplifier is a new generation of high reliability, high quality fire or accident emergency broadcasting equipment.It integrates with MP3 audio source. It can also cooperate with broadcast power player to realize background music broadcast function.

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  • The KT9213/MP3 preamplifier is a new generation of high reliability, high quality fire or accident emergency broadcasting equipment.It integrates with MP3 audio source. It can also cooperate with broadcast power player to realize background music broadcast function.


  • KT9213/MP3 preamplifier internal integrated fire broadcasting emergency voice function.It can be forced to switch to emergency broadcast state through external trigger port.It can broadcast through microphone and record automatically.


  • KT9213/MP3 preamplifier LCD display is used to indicate various working conditions。The buttons are light touch buttons.The LCD can indicates current state.

Technical Parameters:
Power supplyDC24V±10%,<0.5A
Line input sensitivity300mV ~775mV(line1、line2)
Line output level500mV ± 100mV
Line frequency response20Hz ~ 20kHz  ±0.5dB
Total harmonic distortion< 5%
SNR> 70dB
Emergency trigger modeLevel trigger(DC24V)
Working environmenta)temperature      0℃-40℃
b)Humidity      relative humidity 92
Insulation resistancebetween power supply and chassis >20MΩ(DC500V)


If you need any help, please do not hesitate to contact us by Email, we are sure that you will get our response as soon as possible.


Headquarter in Shenzhen


Tel: +86 755 2690 9106


Fax: 86 755 8622 6969


E-mail: sales@fhsjdz.com


Add: 3F, Guangcai Xin Tian Di Building, Nanshan Road, Nanshan District, Shenzhen, 518054, P.R.China


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