Sealing ported enclosure to reduce boom

Hey Ifsixwasnin9, put a sock in it.
Seriously, I owned a pair of Acoustic Energy speakers that came with port plugs. The speakers had more bass than was needed in my small room. With the plugs inserted the bass was much tighter and tuneful. Give it a try.
Nice screen name BTW.

What did you stuff the port with? If you think it sounds better you should find some porous foam material and cut it to fit properly. That should work without any negative side effects.