i own a avatar b212 (2x12 cab 1000watts) and a behringer bx3000t head (300watts i dont care what you think, i like it ) the 2x12 cab is 8ohms i will soon be adding a 2x10 on top, basically i am only pushing 180watts through the cab. when we practicing in my drummers room i didnt seem to be loud enuff it was almost perfect but it just wasnt loud enuff for some reson. then the next day we moved into the living room which was just a little biger than his room. and when we strarted to play i was about 2 times louder and it was a bat out of hell then. and then the neck day we had a outdor gig. i didnt go through the pa but i was still loud and everbody could hear me just perfect. why is it that i seemed to be louder in bigger rooms or biger places. but not loud enough in small places? my volume was the same in the three places and the guitarest volumes was the same also.