Im looking to do a set up for a 2002 honda accord 4 door. Im willing to take in all advice to how i should go about it. Im interested in getting the Fi Audio SP4 but open to suggestions. Thinking about powering it with a crescendo amp possibly. I also want the set up to sound as clean and clear as possible. It will be a daily driver set up with the possibility of some local spl contests. Let me know what you think or what you have done.

SP4 is for sure a brutal sub. The smallest you can get is a 15" so that's already a decent size enclosure even for one. They are custom made and atleast a month to get one. So unless you buy used don't be in a hurry to get one.

Take some measurements of how much space you have and/or willing to give up.

Make a budget. Don't forget about wire, batteries, wood etc. It adds up.

Then make a plan from there.