Maximum output power of the outdoor speaker power to 300W, using 15-inch speakers, claiming that "2000 meters large spread, 1500 people large scale use", I do not know if it is enough? Xinke Born 15 speakers is so said.
There is also a "Poetry Song" 480W 15-inch professional mariachi instrumental singing speaker guitar speaker portable trolley battery speaker, it is estimated that the performance is more objective.