I would like to suggest a better EQ for WinAmp. A 31 bands (1/3 octave) graphic equalizer and a smooth adjustment in the center slider would be nice.
Many loudspeakers need correction. Hi-Fi loudspeaker if place on the table and near wall etc, will need correction for good freq-response and better tonal balance. Computer/multimedia loudspeakers the worst, IMO most of them need correction.