I've heard all kinds of BS like that from people. They will say their friends system hit so hard it broke out windows, but when they sit in my car its like the loudest they've ever heard and I tell them that I'm nowhere close to breaking windows
A guy at a local shop here said with one of the proboxes for four 12s you would hit 160s with 2k watts...i just looked at him and started laughing and told him how much of a load of bs that was lol. Its fun picking on the uneducated who think they know what they are talking about