Just like the title says, I am looking for a 6" flared port for use in my upcoming sub project. I have been unable to find one. I am building a 11 cubic foot sonotube tuned to 16hz. I need to use a 6" port but I cannot find one. Would it be the end of the world to not have a flared port? After all the time and money that Im putting into this project I will not settle for anything less than the best. Any help would be greatly appreciated.