Manual! Haha!Not knowing the amp you have we can only answer in generalities. Most likely a line input would be the best option. A high-Z guitar input may work if the signal isn't too hot and the input isn't too sensitive. Is the output on an XLR, a 1/4" TRS or a 1/4" TS connector? What does your amp's manual say?
I'll post it up in the new tone thread now. Its pretty rubbish really. Might be handy if you were all set up and working but it was getting late and you wanted to finish getting some ideas down. Its just like a very muffled, muddy version of the real thing.That's a pretty safe recording level. If you don't mind the sound, job done.