Reminder: how to tell current from an amp's specs?

Well, peak current is rarely specified.  We can learn the current specified at different speaker impedances, but the amp may be able to deliver more.

The power formula you want to use is:

Power = (Amps * Amps) * R

or:

square root of (power / R) = Amps

where R is the Ohms listed in the spec.

Thank you, Erik. I always read your posts with admiration. This time, though, it's going over my head. 

Let me ask it this way. I've repeatedly read that some speakers, notably Maggies, thrive on high current amps. (I've also seen that disputed.) I was noodling around a thread this morning on tube amps and Maggies, and a poster wrote that his Prima Luna was great because it was high current. How did he know that? How can I look at an amp's specs and know if it would be considered a high-current amp? 

I can't even see that all specs include amps in their ratings. I can see that some amp makers advertise their equipment as high current.

Thanks!

(I know that I wondered about this a couple years ago but I don't think I posted on this before. I see lots of comments on currents and watts, but nothing that explains how one call tell if an amp is "high current.")

So what do you plan to do with the current after you have a number?  It is generally not useful to know.