plug guitar into DI, then, return from DI plug into Amp, them mic the Amp, and plug both from DI Output and Mic (after preamp)
into Souncard Line-input.
combine both sounds, and you will get good guitar sound.

You CANNOT safely run a guitar head direct into your board.

It can be done with other equipment, but the use of a speaker and cabinet imparts so much alteration to the tone (removing 'fizz') that there is no earthly reason to except for that 80s clean DI sound, and a head is a fairly unncessary part of that chain.

An insufficient load on the amps output transformers will blow your tube amp tfs, and your desk as well.

A transistor amp may have a DI output but the sound will still be fizzy.

Why do you want to do this? What made you think it would be worthwhile? If I am missing something I will try to help.

Sure you can, I do it all the time. You must buy a DI box that has a Amplifier in connection. This will pad down the head and also load it so that you don't blow any tubes/transformers.

You can get a cheap ProCo that will do this all day long.

Chris

[quote=Jeemy}
It can be done with other equipment, but the use of a speaker and cabinet imparts so much alteration to the tone (removing 'fizz') that there is no earthly reason to except for that 80s clean DI sound, and a head is a fairly unncessary part of that chain.

Maybe it's just me, but every commercial studio I recorded at ran the head direct for a few of the million layers that my band would record. That is how we got the overly crisp highs and kinda boomy lows. Mixing that behind a mic'd cab did two things for us....pretty much eliminated EQ and got us another guitar take to beef it up. In my opinion this approach is a little like mic'ing the bottom of a snare....by itself its shitty, but mixed with the top it's great!