how do i find my Fb, or Tuned Frequency?
i own a 1997 dodge neon, with an Alpine CDA-9886 head unit and a kicker 300.1 amp with an Alpine SWR-1241D subwoofer. this is my first time making a box and i want it to be vented. having trouble making the box, once i finally made one online that gave me the correct cubic feet, it is now time for me to figure out how to make my L shaped vent. this all boils down to my Fb, or tuned frequency, i need to know if this is a set number or if i need to find out how to find it! im lost!!!