Does anyone own an EHX Holy Grail Plus and know of a delay of about 10 seconds between plugging in the power supply and the unit turning on?


I have the original Holy Grail so take my comment for what its worth. I can't think of any reason your device would wait 10 seconds to turn on. Maybe it was a tube amp...but it's an reverb pedal. So yeah, you may want to go to a tech or take a look at the warranty and see if you can exchange.
Gibson SG Standard
Orange Rocker 30 combo
Fulltone OCD
EH Holy Grail