Remedial gear question time. 
I'd like to try recording using a preamp, but am a little uncertain as to how exactly to go about doing this. As I understand it, it's done like this,
Guitar> pedals> preamp> attenuator> USB interface> DAW> IRs
Is this correct?
Also, which preamp out do would use and why?
Any answers would be greatly appreciated.

I'd like to try recording using a preamp, but am a little uncertain as to how exactly to go about doing this. As I understand it, it's done like this,
Guitar> pedals> preamp> attenuator> USB interface> DAW> IRs
Is this correct?
Also, which preamp out do would use and why?

Any answers would be greatly appreciated.