Mike, I would say not always, but some classical music has very high dynamic range. You can imagine what it is like when over 100 musical intruments including a number of double basses, woodwinds, brass, typani and bass drum etc. suddenly playing full blast at the same time. Even real cannons were used in some of the 1812 Overture recordings. I measured the current flow to each of the front speakers once when playing some of my Telarc CD's and was surpised to see currents well in excess of 10A. The r&b/rap may eat more watts on a continuous basis though.