a bandpass box will usually sound shi tty unless it was designed for the subs in it. if you plug the ports i'm not sure what it'd do because then it'd be sealed front and back....
is it one of those stupid a$$ plexiglass ones? i dont know what to do but it would be cool to just cut the plexiglass off then plug the holes. i dont know maybe that would work
yeah, the plexi ones never stay sealed, if you take off the plexi and plug the holes, you'd basically have a sealed box and it might sound better, but it will be a very small sealed box. so it depends on the subs i guess