Im a firm beliver that any modern speaker will produce the most detail and resolve the best with no EQ adjustments or "sound enhancers". To most people, raising both bass and treble will sound better because it makes the speakers sound more powerful, or lots of treble sounds "crystal". I used to be obsessed with bass and had a huge smiley EQ. I started listening to more detailed music and was told to set it flat. It took a day or two to relise flat is best in about ANY situation. I bet when you try flat, youll be like "this is too quiet and sounds bland". But just leave it flat for a week, hear the difference.
Flat + low distortion = lifelike sound reproduction, which is my personal goal as an audio enthusiast.
If you use any EQ, use a parametric equalizer so that you can set a specific frequency range and raise those frequencies together flat. A normal EQ only raises one set frequency. I used a parametric EQ for a short time because there was a huge mountain at 50-70 hz. I stopped using it because I found the sweet spot for the sub.
EQ sould always be a last resort.