  We analysed how the active galactic nucleus (AGN) X-ray primary continuum
depends on AGN activity in radio, using the data of RXTE Spectral & Timing
Database (Rossi X-ray Timing Explorer) and INTEGRAL (INTErnational Gamma-Ray
Astrophysics Laboratory). Our aim is to test the relation between spectral
shapes of these AGNs and the prediction of the "spin-paradigm" model of the AGN
"central engine". We have found that for the major part of radio-quiet (RQ)
AGNs the value of high-energy exponential cut-off in primary spectrum appears
to be significantly higher than 100 keV and thus follows the "spin-paradigm"
predictions. In the same time, near 25% of radio-loud (RL) AGNs demonstrate the
high-energy cut-off at the energies above 150 keV, contradicting the "spin
paradigm". We have composed a sample of "peculiar" 69 RQ and 10 RL AGNs that
seem to contradict to the "spin paradigm" for further individual studies of
these objects.
