Public address system · MP3 preamplifier
KT9213MP3 Preamplifier
Key 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.
Price on request
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 supply | DC24V±10%,<0.5A |
| Line input sensitivity | 300mV ～775mV（line1、line2） |
| Line output level | 500mV ± 100mV |
| Line frequency response | 20Hz ～ 20kHz ±0.5dB |
| Total harmonic distortion | < 5% |
| SNR | > 70dB |
| Emergency trigger mode | Level trigger（DC24V） |
| Working environment | a）temperature 0℃-40℃ b）Humidity relative humidity 92 |
| Insulation resistance | between power supply and chassis ＞20MΩ（DC500V） |