Can the electric guitar be plugged into the hotel stage speaker during the stage performance?

A performance can never be heard only on the stage, nor can it be heard when it is far from the stage. No speaker supports electric guitar, no speaker head and power amplifier. I think I know what you mean. In fact, the speaker head is also a power amplifier. Your speaker is 20W, which means your speaker's own power amplifier is 20W. If the speaker in the venue is 100W, how can the 20W amplifier promote the speaker of 100W? We have performed in hotels before, and Amway invited us to give them an opening. In fact, all hotel speakers have mixers.

There are also many foreign or a few domestic band guitarists who have their own speaker heads and speaker effects. If the performance site is different from your own speakers, it will have a great influence on the timbre. So those guitarists still use their usual boxes and boxes, connect their speakers with better microphones, and then amplify their timbre in the speakers of the performance venue through the mixer, so that everyone can hear the sound of the instruments on the stage and the timbre of the original CD.