I always listen to music flat, and usually without a sub. It's not the lower frequencies I have issue with, it's more the upper midrange area in certain types of music.. When listening to Diana Krall (Jazz), the speakers sound amazing, almost life like, on the other hand with Fleetwood Mac, to me they sound completely off, almost like they are attenuating some frequencies, while boosting others in the high mid range. I wish I had access to a good spectrum analyzer to really figure out what the speaker response looks like.
I'm probably being too picky, and like many others have said, it's hard to beat this speaker in this price range. Thanks for the input.