Hey guys I have a couple of questions for those of you with experience with the SVS sub. Just received my 20-39 plus and so far so good, but just have a couple of questions: 1) Is there a break in period for the sub, if so how long? 2) Can you place the sub right next to your other main speakers without causing any issues or distortion? 3) Do you guys recommend using the additional foam that comes with the sub to get the really low frequencies? 4) What is the current settings you use, I have my sub gain at around 70% and my receiver set at -7db. Thanks for your input in advance.