So Zilch I was just wondering how much the tone of you l100's in that picture changed because blocking the port seems like a very easy thing to do and I am bored enough to try it. I know I'll lose some efficiency but it shouldn't be that big of a deal. I think it would from what has been described change the bass from a thump to more of a roll. Also I won't damage my midrange by putting all that pressure on it will I?