I had the same problem. I didn't go with a sub and the m50ti's were not going low. I have it for about a month now and used mainly for tv and movies. I put on the same movie, Saving Pvt..., and to my happiness it was much better. I noticed the difference slowly getting better, but when I tried the same movie from day one and a month later, the difference was very noticeable. The surrounds are nice too. I do think I have them a little higher than they should be though.