Ok so i broke down my closet grow and I've finally rebuilt it. I added insulated ducting and made a MDF box for the fan, stuffed with foam. I also covered the walls in styrofoam, which i think was waste of money and time.. but anyways Its WOWWIES AMAZINGLY DIFFERENT I mean its silent. No ac on, I'm sitting in the den merely a room away all doors open and i can BARELY hear it. The only issue is the noisy vibration on the drywall. It can't be helped, its just to thin of a wall. But here is the thing, unless you put your ear right on the spot, all the other ways have the same hollow noise, its just a little louder there. Thats something i can work on. Now add on a tv and the A/c and you couldn't tell a thing. Im talking old house, thin thin dry wall between bedrooms and its gone from noisy as heck to silence. I have bought a fan controller but ill see if i even need it once i hook it to my attic vent. I guess i should try it and see if it helps..