Kurt under Parametric EQ, what do I set it to?
Unfortunately the way the room is setup, its close to a corner wall
It is quite boomy indeed - I ran Audyssey and it set the gain to -22
Ryan gives good advice, if you can get it out of the corner it would make life easier all around. Just as a quick test move the sub into the center of the room and listen to a song or two. Move around while you are listening so you can get a sense of how the bass changes depending on your location (if you put you head in a corner, you are likely to experience the same boomy bass you did when the sub was in the corner), but it is a quick way to appreciate why location of your sub matters so much!
However, after that, the proper thing to do is to use a free measurement program called REW along with a microphone to measure the frequency response of your subwoofer. This will show the increase in bass at certain frequencies and you can use the PEQ to counter these tendencies. You can post your measurements here for advice (hopefully from some who knows the SVS control interface for their PEQ).
For instant gratification, I would start off centering a PEQ around 24Hz, set it to the broadest bandwidth possible and play with the level of attenuation to find the most comfortable result.
Generally room gain has the greatest effect at the lowest frequencies, so I would expect this will abate much of your problem.
However, understand that you absolutely don't want to make this your permanent solution! You just bought one of the best subs made and my temporary solution is a very ballpark-blunt approach to fixing a problem that this sub is capable of handling with great finesse! You wouldn't be here nor paid that much money if you didn't care, and this solution is essentially dumbing down your sub to a inexpensive sub that rolls off at 30Hz or so!!
Also, don't hesitate to consult with SVS! Your experience is not in the least unique! They have people there who are used to asking you the right questions and giving you very good advice on how to resolve your issues. They do not hire the stereotypical; snot-nosed high school kid to answer the phone, they have technically knowledgeable people who enjoy helping you figure out you problem and that moment when things come together for you ... just like we do here! Trust me, those guys are great and you will feel even better about buying from them.
Don't get me wrong, I am happy to help you and there are others here that know more about this than I do, but the guys at SVS have deep experience helping people at all levels of understanding since that is much of their job! Obviously, if people don't sort out their issues, they are likely to take advantage of SVS's liberal return policy! But I suspect they also have stuff like the REW program on tap and can tell you where the best place is to get a microphone, or they may have a simpler approach involving (maybe?) an SPL meter and some files of different pitches. IOW, they should be more streamlined since this is their specialty!
