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30/60 W desktop compact amplifier with internal music source and multiple inputs.
Lists key capabilities like 100V output, USB/Bluetooth, MIC/LINE inputs, and protection circuits.
Indicates music source and volume control status.
Includes volume, bass, treble, and master controls.
Details AUX IN and USB inputs for MP3 playback.
Explains status LEDs: Power, Signal, -10dB, Clip, Protect.
Used to turn the unit ON/OFF.
Connects the unit to AC power (110-240 Vac).
Links or unlinks GND and frame/earth.
Outputs for 100V, 70V, and 4 Ohm speakers.
MicroSD card slot for pre-recorded messages.
Details CH3 RCA and CH2/CH1 MIC/LINE inputs.
How to connect the amplifier to the AC mains power supply.
Details the three audio inputs: CH1, CH2, CH3.
Describes the three priority levels for audio inputs.
Connects speakers in parallel for 100V/70V lines.
Connects speakers in series or parallel for 4 Ohm lines.
Grounding switch to link or unlink frame and ground.
How to adjust volume using buttons.
Instructions for USB playback and recording.
Steps to connect and use Bluetooth audio.
How to use the microSD card for messages.
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