#1
I have a multi-track recorder and I want to record stuff from my rig. I have a Crate XT15R amp (cheap, obsolete, but nice built-in head) and it has a jack on it that has a speaker icon above it. Do I plug a cable from there to the recorder? Is that the idea? Or will that blow up the recorder?

Also, could someone recommend a site for learning these basic things?

Also also, does anyone know where I can get a instruction manual or user guide for my Crate XT15R amp? My Google searches are turning up nothing.
#2
well it won't blow up the record (shouldn't at least, may be wrong), but the best way to get your amps sound is to mic it up. get a microphone, plug the mic into the recorder, and put the mic near the centre of the amp's speaker.
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#3
If thats an external speaker output it will quickly fry your recorder and could damage the amp. Mic it.