soix,
"It offers SO MUCH more than just more bass. Add another sub and you’ll be equally amazed at what it can do. Subs add ambiance and have presence we can’t know until we get a good one and properly set up it up. Turn the sub off and the music and soundstage just shrinks." I couldn't agree more with your post. I often tell people that adding subs isn't just about bass and I believe most systems benefit from "properly" setup subs. I always say, I can't hear my subs, until I turn them off.