So, to keep a long story short basically I'm stupid and left my amp on overnight in my room. When I woke up it was kind of warm but that might just be because it's next to a heater. But anyway, I just got back from being out- the amp's been off and unplayed for about 6-7 hours now, and now when I play it just sounds like it's got a blown-out speaker. But this sound carries over to my headphones when they're plugged in. Am I screwed or is this fixable?