Best fit of the SED of 4C 23.56 when assuming that the AGN is solely responsible for the mid-infrared emission and allowing λ_cut to be an additional free parameter. The black solid line shows the best fit with μm. The dashed line is the best fit AGN model used in Drouart et al. (2014) which itself is the average AGN used in the DecompIR SED fitting code (Mullaney et al. 2011). See Table A.23 for details about the photometric data.