Yep, but you're speaking at about 1dB attenuation at 20KHz, 3dB in the worst case, then not more than 1-2dB at 16KHz, which while may have some effect in the midrange perception, I guess it's not the kind of midrange emphasis we're speaking about.
EQ can achieve some things, but not everything. BTW the thing Azazel recommended is craptacular IMHO.