The only thing a phonebook is good for these days is a. to prop up your crappy furniture, b. fire material or c. shredding it up to show how badass you are. So this guy decided to shred up his phonebook using nothing but the force of bass, with awesome results! Skip to 2:45 for the phonebook carnage (Note: Keep in mind that speaker damage is possible due to low bass, so adjust volume accordingly).