  We present a microscopic description of dressed four wave mixing (4WM)
demonstrating spectral control of quantum correlations. Starting from a double
$\Lambda$ model for a single pump 4WM, we include a dressing field coupling the
excited level which leads to a six wave mixing process (6WM). The model
describes the enhancement of the amplification and intensity difference
squeezing due to the interaction of the dressing field, according to the
experimental parameters. Moreover, the model predicts that this mechanism
allows the spectral control of the quantum correlations between pair of
side-bands by just tuning accordingly the dressing field.
