Play revision #3 on WMP...graphic EQ...set sliders:
31, +6
62, 0
125, -4
250, -5
500, -3
1k, +3
2k, +3
4k, 0
16k, +2
A/B the settings flat, then as above...on the monitors. reset/custom {bottom of column will reset to the tweaks...in case you didn't know}
That tweakage sounds really...