Cwlondon...According to Rives Audio, who qualifies as something of an expert on room treatments, you can't do much that way below 350 Hz or so. This is why they developed their PARC equalizer.
Of course it may also be that you have set up a frequency response curve that you prefer over flat. This could be related to your speakers/room, your ears, or just a personal preference.
Of course it may also be that you have set up a frequency response curve that you prefer over flat. This could be related to your speakers/room, your ears, or just a personal preference.

