First, look at your space and number of people. Secondly, it depends on your budget (how much are you going to spend on it).

Because the power of professional speakers depends on the speaker caliber and the number of speakers (65,438+02 inches, 65,438+05 inches, 65,438+02 inches, 65,438+05 inches, etc. ), and the most important thing is that the speaker depends not only on power, but also on sensitivity. If the sensitivity is low, it means that the speaker efficiency conversion inside the speaker is relatively low, and it is "eating" power.