I have a "hole" in my home theater system. It's a hole in the frequency response somewhere between 100 and 125hz. There is, however, nothing I can do about it with my current system. I believe the problem is the fact that the crossover on my receiver only goes down to 100hz and that my subwoofer (DIY) has a dip right around there. I believe that with a new receiver I could remedy the problem by setting the crossover at 80hz or so.
Until that time, I want something that will make music sound more full. When playing music on my system from my computer (via coax digital) the sound is a bit thin due to the hole. I have boosted it with the graphic EQ in Windows Media Player 10 and it really helps to make it sound a lot better. There is, however, one problem. It distorts the sound, even when I raise it just 1 decible. What is the reason for this? It is a very annoying problem. I have tried other EQ's in Winamp and Itunes with the same results.