We are using two subs in a medium size church with soloists, keyboard, bass, sax, organ and choir. It is great! Everyone loves the difference in the sound this subwoofer makes. This subwoofer really brings out the lows. We are using the entire line of the Tour X series which sounds great and even though it is a little expensive, it is worth every penny. It has been able to handle a professional recording artist without any problems.