I was playing through my Guitar Amp and I ripped out the headphone wire can some help? details below?

I was playing my guitar through my Peavey Vypyr 30 Watter and too hear it through my headphones i Cranked it up to 13/13 and I tripped and fell over and i ripped it out at like 3am and it let out a giant Roar of feedback, have i permanantly damaged the amp in anyway? Help would be appreciated.