All the range-separated exchange hybrids considered in this work exhibit very similar spectroscopic features. Here, the plasmon band is localized at larger energies than with global hybrids. It lies at 4.55, 4.54 and 4.55 eV for RSX-PBE, RSX-PBE0 and RSX-PBE0-1/3, respectively. It is both characterized by high values of superatomic character and collectivity indexes. We notice that the superatomic character is very strong over the whole range of the spectrum. The collectivity index helps however to locate the plasmon-like states.