Not all speakers can attain this ideal and you can find yourself spending thousands of dollars trying to buy a speaker system that is neutral. Most of the speakers that we sell are practically neutral they may have certain properties that lend themselves to particular types of music but can equally be reasonably faithful to all types of music. These signals consist of layers of frequencies from very low to very high. The range of frequencies that a speaker can deliver is known as the frequency response. Human hearing, under optimal conditions, is 20Hz to 20,000Hz.
Most speaker systems follow close to that range.
Speakers deliver sound by taking the electronic signals coming from an amplifier or receiver and converting them into vibrations. The speaker interprets the frequencies of the music as vibrations. It's called a Woofer. Imagine the bark of a large dog deep and loud. Higher frequencies move less air per cycle but, because they're faster, produce higher sounds reminiscent of violins and flutes.