K city operators KTV sound when the choose and buy tend to choose the sound power is larger. Reason is that the sound power can withstand pressure also big, more stable, even to the very loudly nor distortion, is not easy to burn out, and the sound power is somewhat small up some distortion, easy to burn out. So how do we to test the sound power of what we choose and buy? Today will share with you a few professional audio power test method.