Stacked spectra of Class I objects (BLAGN) in the luminosity ranges above and below log L₂₋₁₀ = 44.43 (erg s^-1). The best-fit power-law continuum for the spectrum of the high-luminosity objects is indicated by the solid-line histogram. Weak Fe K emission peaking at 6.86 keV is seen. On the other hand, the continuum model indicated with the solid-line histogram for the spectrum of low-luminosity objects is that expected for a power-law with reflection (see text for details). A moderately broadened Fe K feature centerd at 6.5 keV, with a possible redward extension down to 4.5 keV, can be seen. The best-fitting diskline model for this Fe K feature is indicated by the dotted-line histogram.