Hey im going to be building a box for my new subwoofer, but i dont know what size and dimentions it should be. So im askin you guys for help. The sub is a 15" Audiobahn natural excursion, and ill be sending 600 watts rms into it. I really dont know if i should go sealed or ported. I will mainly be listening to rock music and rap. I want it to be pretty loud, but not enough to be heard really far away, but im also new to this so a ported box might be difficult to build... if you have any suggestions for the dimensions and type of box i should build, please let me know!