How to a use a Behringer Tube Amp Modeler TM 300 for recording quitar using DAW


Hi guys, 

I bought a Behringer pedal Tube Amp Modeler TM 300 for my electric guitar. For recording I already have an old FCA202 that works just fine with my guitar directly pluged in. And I also own a Behringer mixer Xenyx802. I wonder how/where should I connect/place my new pedal in order to get a good sound for recording in a DAW on my Mac. The Impulse Response is provided by my digital Impulse Loader on my Mac. Should I plug in my pedal straight into the audio interface? Should I use the mixer? Do I really need a DI box? and so on...