Hi AquarianPython, welcome to Head-Fi. Don't worry, your headphones will be fine.
Home of the Liquid Carbon, Liquid Crimson, Liquid Glass, Liquid Gold andLiquid Lightning headphone amplifiers... and the upcoming Liquid Spark!
Thanks! I appreciate the response, put me at ease.
Welcome! Happy listening!
I would guess the speaker out would be line-level and the headphone out wouldn't.
Either way, as long as you had a volume that wasn't causing you pain the headphones will be fine.
Nah, no worries. I checked the manual he posted, and it turns out the green "speaker" out is the headphone out. And, to the best of my recollection, the [onboard?] sound card didn't have a line out.
Your headphones aren't damaged unless something like this happens to them