This machine mainly consists of front-end amplification, feedback suppression (DSP adaptive algorithm), noise reduction, AGC automatic gain, and back-end amplification.

Applicable microphones: Ceiling mounted microphone (48V), wireless microphone Implementation functions: Teacher's end (Chairman's end) remote pickup and amplification (with one click mute) Applicable scenarios: Multimedia classrooms, small conference rooms Manufacturing process: External use of profile panels and steel casings, internal use of SMT surface mounting technology, wave soldering, C digital amplifier, ring transformer, symmetrical power supply Design: Low noise, low distortion, intuitive and simple debugging, efficient and stable performance.

External settings: There is one power on indicator switch on the front panel, and the rear panel is equipped with three microphone interfaces, RS232 interface, TCP1P interface (reserved), three sets of line input interfaces, one set of line output interfaces, and two speaker wiring terminals.