Dubstepforum.com

How can I check the peak without playing the entire song?
There's any plugin where you could analyze the peak and check the right parts?

So...?

Export it as audio and then visually see where the loudest part of the track is by the length of the wave.

In Logic Pro you can check the loudest peak in a track using an analyser.

Might help you
www.sonalksis.com/freeg.htm
http://bram.smartelectronix.com/plugins.php?id=4

But why would you not want to listen to it? That's the best way to tell... ears don't lie, but your eyes can play tricks.