Example SED fits of an X-ray absorbed AGN (top), an X-ray unabsorbed AGN (middle), and an optically selected QSO (bottom). The dust emission is plotted in red, the AGN component in orange, the attenuated (unattenuated) stellar component is shown with the yellow (blue) solid (dashed) line, while the green lines shows the nebular emission. The total flux is represented with black colour. Below each SED, we plot the relative residual fluxes versus the wavelength.