.5 Farad "Stiffening" or large filter caps have very low ESR (equivalent series resistance) so the maximum peak ampere rating is 10,000 RMS instantaneous and 95 degrees C operating temperature. These are designed for up to 16 volt automotive systems (20 volts peak). Your amplifier internal power supply capacitors will run cooler (longer life) and your DC power source will be filtered so that your dash lights will not flicker with heavy bass.  Made in USA.