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The saloon control unit is installed in the cabinet of saloon. It is responsible for media playback, PA control and transmission. Saloon cpntrol unit consists of power module, PA control module, amplifier module and switch module.
| Structure | 3U19-inch | ||
|---|---|---|---|
| Power module | DC 110V (77V~137.5V), 150W | ||
| Broadcast control module | Core equioment of saloon PA system, processing onboard PA information | ||
| Switch module | M12 ports, 100/1000M adaptive, support full network management | ||
| Power amplifier module | A solid component design to amplify the input audio signal and output it in a 100V constant voltage mode; input sensitivity: 0dBm (symmetrical and ungrounded); Frequency response: 100Hz-20kHz +1/-2dB (rated output), the frequency response below 100Hz is attenuated at a slope of 6dB per octave; The total harmonic distortion of the uncompressed amplifier must not exceed 5% at full output at 1,000 Hz and should not exceed 1% at 50% output. At rated input, the output level error of the limiter circuit must not exceed 3 dB, and the harmonic distortion should not be greater than 0.5% at full limit. The output of the amplifier meets the requirements of UIC568 for frequency characteristics and distortion; the output power of the amplifier is 30W, enabling the adjustment without failure. | ||
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