Looking to purchase a PB2+ soon and was wondering why I keep seeing posts with people setting the sub level at different positions. Aren't you supposed to set the sub level to max and then use your receiver / pre-pro to adjust accordingly? I just keep reading about people setting the level at the 11 o'clock position or 12 o'clock position. I was always told to max the level out and then adjust using your receiver. Is this wrong in setting the sub level to max? Negatives to doing this? Thanks in advance.