I am trying to set up my svs 20-39 correctly. I noticed at the SVS site that many people go 2-6db or even 2-10db with the sub over the rest of the speakers. Well I set mine at that. I just think I should have more bass. It is not right. I have the SVS in the corner. I have read some post on here and it appears that the internal test tones on the Onkyo 595 that I have are 10db too low for the sub. Does this mean that my sub would have to be at least +16db to get to the +6db range of what most people listen at? I just want to make sure. I guess I need to go out and get the Avia disc. Do they sell it at places like best buy or Curcuit City?