Hello all, I have another sound question: "If louder sounds have bigger compression waves, what does a speaker have to do in order to create louder sound?" Ok, so a speaker creates a sound wave by generating regions of high and low pressure. It is these regions of high pressure and low pressure that travel. Sound waves lose energy as they travel further from the speaker as the areas of high pressure lose pressure and the low pressure areas gain pressure. So in order for loud sound to be generated the difference between the area of low and high pressure must be increased, thus an increase in the amplitude of the sound wave. Is this correct, and if so, would this be sufficent to answer the above question. Thanks a bunch.