John, please read the link that lovinthehd provided you. Its a good start and will help you understand that subwoofer placement is room dependent, not speaker dependent. You took time to register and become a member on this site which means your looking for answers. Unfortunately, good sub woofer placement is a little more work than answering your question. If you are serious, read the link and then ask questions if you dont understand. If you have placement restrictions on the sub, then you need to tell us that too. The more information you provide, the better we are able to help you.