Disk (thick lines) and blackbody (BB; thin lines) components of the intrinsic spectra of a ULX with L_obs = 10⁴⁰ erg s⁻¹ for two different CO masses, 1.4 M_⊙ (orange) and 20 M_⊙ (blue), and two different values of e_w for the P07 model (line styles, see legend). For comparison, in purple, we overplotted the DIS (dotted line) and BMC (dashed line) models from Simmonds et al. (2021), as well as the model for a BH of mass 10 M_⊙ (continuous line) from Senchyna et al. (2020), scaled for the same source luminosity. We note that in our models, the normalization of the intrinsic spectra depends on the CO mass: the smaller the CO mass is, the smaller the beaming factor is for the same observed, face-on luminosity.