Is my amp fried?

[Someguy]

Hey, I just upgraded my car subwoofer and it says I have voltage all across my amplifier but nothing at the outputs to my subwoofer. This makes no sense to me because all I did was literally take the sub out that I had and replaced it with the new one. (Putting the old one back in doesnt help). The new sub hit once and then that was it now there is no voltage leaving the amp.

[zingo]

Very well could be... do you happen to have a multi-meter to test if there is any measurable amount of output? Can you swap out the amp for a friends real quick and see if it changes anything?