conrad Johnson premium 12 4 ohms and 8 ohms

i got a premium 12 and the previous owner told me it was set as 4 ohms and it will be fine working with 8 ohms speakers and no need to reset it to 8 ohms. So I was wondering How does that work? Thank you in advance!
I believe you would need to send the amps back to cj for the conversion. I would not worry about it you will be fine; just hook them up and enjoy.

Thanks, Chuck. You mean I should or should not send them to CJ?
I would not send them off to cj. You can always e-mail or call them and ask as they are very helpful and will give you a straight answer.

Thanks, Chuck. I called CJ and they confirmed usually it works perfectly setting to 4ohms I will leave them that way for a while.