Well, it has not been a good day for my trace stack. After discovering my blown 118 I decided just for fun I would check the polarity of my 410. So, I touched a 9 volt to the cable and only 3 out of the four speakers actually work! I had never noticed this before so I'm pretty sure it's a new development. I pulled the bad speaker and swapped one of the working ones in its spot and nothing. I checked every connection in the thing. I also tested the speaker that wasn't working with a 9 volt and it works. So it's not the speaker. I just don't know where to start. I am a bit of an electronics noob so any help would be appreciated. Sorry this is my second post in amps looking for help today but things are just not going my way today 
