I've been using the rockbox equalizer with my sr60s to improve the sound, and I've been successful. But I'm not a sound engineer, and would like some advice from those who have experience mixing and working with equalizers. For instance, if I want to boost the bass, I thought initially that I'd just boost the low end. Now I've read here, and online, that this practice is not as effective as simply lowering the mids and highs. So basically, I'm looking for experienced help.
Below is the frequency graph for the grado sr60s, taken from headroom. My goal is to raise the sub-bass to audible levels (preferably with some visceral impact), keep the mids the same, and remove a bit of the harshness the sr60s sometimes present (not attenuate the highs which I enjoy, just the harshness). So, using the rockbox EQ, what should my settings be for the: center frequency, gain, and Q?