Check this out. How about a DJ using one powered speaker sitting on a table. No sub at all. Not a very large room but I would have easily used at least 2 tops and maybe one sub with the tops on speaker stands. At least the speaker was a QSC. That DJ had more issues then using only 1 speaker. He could have used the right setup and he still would have sucked. The crowd would be dancing to a song after it took time for him to get the crowd up dancing and he would cut the song short. He kept doing that all night long pissing the crowd off. He used auto mix the whole time. So certain songs didn't sound right with other songs. The committee already said they won't ever use him again.