Blown speaker, stupid move?

I’m newly configuring a system. Yesterday, I finally received the last of the pieces, preamp and cables. But without realizing it initially, UPS had damaged the preamp, such that it didn’t work. Now, I had not yet heard either speaker or amp, and I was anxious to try and troubleshoot the whole thing. So I plugged in TV out, thinking that the TV volume might have controlled gain. And the thing blared. I did it twice. About two, three seconds, each time. Although I know it’s tough to say, I’m curious for the responses: What do you think are the chances that such a move blew my tweeter or other speakers?