Using PS-2A for amp captures?

I am having a problem trying to use the PS-2A to make amp captures. After hooking everything up correctly, I get a constant feedback loop. This happens both when I use the XLR, or 1/4" output back to my profiler. I am at a loss for what to do at this point. I can make it work with my Two Notes Torpedo Captor, but not with my PS-2A. Could anyone possibly shed some light into what I am doing wrong? Again, I have all cables hooked up as directed by the profiler. Thanks!

Hi @mcoffin

People do this successfully with the PS-2. Devils is in the details when it comes to debugging ground loop issues, which is what I am assuming this is. Without a detailed understanding of what you have done there is not much I can suggest.

Can you post pictures?