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The nearby Hyades cluster harbors four giants comma which have almost identical optical appearances. However comma the activity of these very similar stars differs comma with two stars being active comma while the stars HD28305 and HD27697 are inactivedoublePoint The X-ray luminosities of these stars differ by more than a facor of 100! An evolutionary study shows the former two at the beginning of their helium burning phase comma while the latter two have already developed a carbon-oxygen core. Detailed X-ray spectroscopy is available for the two bright giants comma yet none for the two fainter giants comma for which we propose deep XMM-Newton EPIC spectroscopy. We want to perform a detailed analysis of the X-ray spectra comma search for spectral differences and relate them to the different states of activity and stellar evolution.