Will accidental max volume damage a speaker?


I think I’m okay but I would still like some reassurance. My preamp has an option to use one RCA input as a pass through that bypasses the volume control. In other words whatever volume goes in, goes out. Weeks ago I set it up that way to test a different component and I forgot to set it back when I unhooked that component. So today I hooked a dac to it using the dac’s fixed outputs, so I assume line level. So when I started a song it was loud, really loud for about four seconds. Probably not as loud as if I maxed out the volume intentionally, although I’ve never done that so I can’t be sure how loud that would be. Just wondering if speakers have a safety mechanism designed in where the drivers can’t over travel and cause damage. My speakers are Usher Audio dancer mini-x DMD. They still sound perfect to me but I’ve always wondered about this question anyway so it motivated me to ask. I've probably just watched too many comedy movies where teenagers literally explode their speakers like there was a grenade in them
milkdudd
Thanks for all of the input. A change I made to my system after this happened has proven to be a really good one, so ironically I think my system sounds better now than it ever did. Seemingly proof that I lucked out. I checked and the RCA fixed outputs of the dac I hooked to the preamp is 2.3v rms. Am I correct that a balanced output (if it had it) would have been much worse? Talking about laying on your back and trying to get everything hooked up just right, kind of similar last night I had to adjust some small gain switches on the back of my amplifier, holding a small mirror, using a headband mounted flashlight to look at the backwards numbers of the switches as I pushed on them with my fingernail. It worked but I doubt if it's in the manual that way
"...Am I correct that a balanced output (if it had it) would have been much worse?..."

no. You were WFO. There is no such thing as WFO plus a bit more, you were maxed out. 
If it sounds ok, it’s likely ok. 

My daughter, a professional musician, was over with a friend once, wanted to play a cd of her new EP, didn’t realize that just because the volume control goes from 0-20, doesn’t mean you want to go anywhere north of 6. Ouch!

That was happened to me few days ago. I almost got heart attack due to the high sonic came out from speakers. It happened just for 2s but I almost gone crazy. Vey terrible experience. I have decided to get passive preamp to control the volume between my DAC (with digital volume) and power amplifier (with no volume control) to avoid same experience in the future. Afterward I had check my speakers quickly and played the song for few mins, no issue encountered (I guess, I've not good listeening skill). But I become psychopath they are not as good as earlier or my ear drums was damaged...