I bought four 22-0-22 transformers (it was only 5 euro each...

)
Two trasformers for each PS: 3 secondaries in series to get 66Vac and the fourth with 22Vac.
At the output of both PS I get 87.5Vdc and -21.4Vdc, unloaded (on diyaudio I saw Russ measurements with 80V and -21V unloaded)
Are my voltages allowed?