I just remembered something strange that I never understood. I purchased a 18DS a while back to switch out with UM18 in mini marty. After the switch subwoofer in same location no settings changed I played the song "This is Bass" by Bassotronics. During the really low bass notes my fiance ask "why do I feel so much pressure?" This song gets played at least twice a week. I said Idk I feel a difference too idk what's going on.
Maybe we were both trippin.
I have no idea.
Hopefully i posted in the correct thread if not sorry I can delete