SEDs generated by GIGALE using a particular SFH extracted from galform and adding on different AGN templates with different normalizations relative to the galaxy light. Each panel corresponds to one of the three Fritz et al. (2006) templates presented in Table 1: the upper panel is for Type-1 AGN, the middle panel is for the intermediate AGN type, and the lower panel is for Type-2 AGN. SEDs are colour-coded according to the contribution of the AGN to the total IR luminosity. The black solid lines at the bottom of each panel are the broad-band filters of Table 2, within which the model SEDs are integrated to generate mock photometric catalogues. The inset plots show the contribution of the three AGN components to the total SED for frac_AGN = 40%. Red is for the dust torus emission, orange is the scattering component, and cyan the direct emission from the central AGN.