Maybe someone can help me out here. I've been building my Icepower amp, https://www.diyaudio.com/community/threads/why-do-i-have-56v-on-my-vdrive.383620/latest and things have been going pretty good. I've got it up and running but I noticed today that while I was watching a video on youtube that was all dialog so the woofers where hardly moving, that from time to time the woofer cone would either push out or pull back in unrelated to the video. It did this kind of slow and didn't make any noise but it is acting like a speaker does when you put a 9 volt battery to it'd terminals it either goes in or out so I am assuming it has to be DC that is getting to the speaker. Does anyone know what might be causing this to happen? All of the specs for the amp are at the link above on the other thread if you need to know. It has me concerned because I know it shouldn't be doing that. Any help with this would be greatly appreciated.