1. A customizable user interface is required;

2. It needs to have a built-in USB sound card, supporting recording, broadcasting, and remote meetings

3. Integrate third-party control components to easily control third-party devices such as projectors, screens, lights, curtains, and power sequencers

4. The processor chip adopts ADI architecture, featuring a DSP floating-point operation engine of no less than 40 bits, and provides a freely configurable software architecture;

5. The input and output quantization shall not be lower than 48KHz/24bit;

6. The input channel should have: no less than 12-band PEQ, and offer no less than five types of filter options; automatic gain control (AGC); ducking (Ducker); active noise cancellation (ANC); adaptive echo cancellation (AEC), noise suppression (ANS); gain sharing automatic mixing (AMC), threshold automatic mixing (Gate Mixer);

7. Each channel should have adaptive feedback control (AFC) with no less than 16 points;

8. The input channel should have: no less than 12 bands of PEQ, 31 bands of GEQ, a crossover, a delay, and a limiter; no less than 16 preset groups;

9. Support for input and output channel LINK and grouping functions;