Surprisingly, I was able to pick out the live amp in all of them except the first one. Once I heard which one was the live recording I had a reference to go off of. The rest were pretty easy to spot. Here's how you can tell...
1. If you listen close you will always hear the room in the "live" recording. It's subtle sometimes but there's usually at least a little bit of room sound in there. It makes the tone slightly darker (more bottom-mids) and a bit more irregular (not as consistent in volume).
2. Digital modelers sound plastic in the high end past 7Khz. That is because guitar speakers don't produce many frequencies above 7k and that's usually the giveaway. You can really hear it in some of these though it's more subtle in others. It's a shrill sound that's pretty easy to spot. Very bright and brittle. You'll know it when you hear it!
3. As the article states, modelers usually compress the sound to make it louder and more consistent. Amplitube does a lot of that. The live recording has a bit more jump to it where there are slight volume changes.
Now, here's the thing....I've taken another test like this before and got them ALL wrong so maybe I just got lucky here! Or maybe...I'm waaaaaay too obsessed with guitar tone

:rolleyes:

I've spent embarrassing amounts of time listening to nearly every modeler on the market for hours and hours. I don't have Pro Tools so this is the first time I'm hearing "Eleven". Must say I am VERY impressed

FWIW I thought the "Amp Farm 3" sounds were the best with "Eleven" coming in 2nd and the actual "live" recorded sounds in 3rd. There were many times I thought the modeled sounds were actually better than the live ones.
Btw, I listened with headphones and had to review the parts a few times before I could pick out the live take....