Right, that amp can power those huge Peavey dual 18" PA style speakers with the massive horns. I was at a swim club party on July 4th, and they had a set. They were about 6' tall. Those two speakers filled an area about 5 football fields. They were facing in different directions, and still had bass. That amp should be able to drive the two SDA/SRS towers, as well as heat the house.