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4 mic/line input and 3 road music source input u 100 V input and phone, with priority and VOX u radio output, only 3 lines cover u voice activation volume emergency cover u wide power range (30, 60, and 120 watts) these spot li mixing amplifier are high-performance professional public broadcasting equipment, have modern advanced features. They are simple and easy to use, and can be put into use at the desired location, eliminating the user's troubles. The ability to play clear broadcasts or music is like turning on a radio. In addition, the amplifier is affordable and does not require the sacrifice of ducking, priority, and flexibility. Basic function microphone and line input all microphone/line inputs can be switched between microphone level and line level sensitivity. The input can be either an equilibrium signal or an unbalanced signal. The user can turn on the phantom power to power the capacitive microphone. The priority of input channels 1 and 2 can be higher than that of all other microphones and music input channels: ? input 1 can be activated by closing contacts on PTT (press or speak). A 2 tone cue can be set to play before broadcasting. · input 2 can be automatically turned on when the signal is transmitted to the input, such as when someone is speaking into a microphone (VOX is activated). When a high priority is assigned to one or both inputs, the attenuation value of lotus pluggable input can be set between the ?2 dB (low attenuation) or -infinity dB (mute). This will provide dialogue or voice-over. In addition, input channels 1 and 2 are also equipped with optional voice filters to improve broadcast clarity. Music input independent music input has its own input selector and volume control. Users can choose music sources such as CD players or radios (such as pln-dvdt) or set music volume levels. Personalized Settings this amplifier offers a number of unique features, such as desirable tags on which users can write input, music source, and partition names. These tabs can then be mounted on the front panel and protected by a transparent window. Another very useful feature is to specify the preferred Settings on the front panel by inserting a color pin at the preset level of all the knobs. You can then instruct the user to set all controls to a silver colored colored pin so that the system performs a specific use. Another user can set all controls to a red colored colored pin according to their configuration. The integrated amplifier provides telephone / 100 V emergency input (with VOX activation energy) for easy integration with another broadcast system or telephone paging system. This input has its own default volume control and takes precedence over all other inputs, including the call station and input 1 and input 2. In addition, the device is equipped with a single line output for adding amplifiers to large systems that require higher output power. For example, this output can be switched to music mode only to provide the function of waiting for music for the telephone system. The power hybrid amplifier has three output power options of 30, 60 and 120 watts. The 100 V constant voltage connection line and 4 ohm low impedance connection line can provide this power directly. In addition, these amplifiers have a separate 100-v "call-only" output channel for broadcast areas where only priority broadcasts are needed. The "paging only" output can also be used for 3-wire remote volume coverage. The output state LED VU table is used to monitor the main output. The headphone jack under the VU meter is provided for mixed output. In order to ensure the overall reliability and usability, the output level is set up as a limiter, which can make the output at the signal level used by the user too long.