1. The connection sequence of the bass system equipment: mixer (1-2 grouping) → equalizer → crossover → compressor → bass amplifier → bass speaker.
2. Auxiliary audio system equipment connection sequence: mixer (3-4 grouping) → equalizer → delayer (optional) → compressor → auxiliary speaker amplifier → auxiliary speaker.
3. The connection sequence of the main audio system equipment: mixer (L-R main channel) → equalizer → exciter (optional) → feedback suppressor (optional) → compressor → main speaker amplifier → main speaker.
4. Monitoring system equipment connection sequence: mixer (AUX output)→equalizer→compressor→monitor speaker amplifier→monitor speaker.
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