Ok, So pretty much I live in a duplex and I still get pretty good isolation with sound.. But my mom will freak out if she hears just the littlest thump sound even if it's every 5 minutes. So, I'm thinking if I get some like 2 inch sound proof foam and put it on the door and maybe around it a little bit, Because all the sub and speaker sound is coming straight through that door and about 50 feet down the hallway which is full tile down to my moms room. So, what do you guys think my idea so far is I think it would help so much, Even though the sub goes through the vents and into my moms room and she sleeps right next to the vent.