So far I was able to try the 707, 707X and 81-7, so it’s actually the last of the bunch that was missing. I’m not a huge fan of the regular EMGs, but the X series really does sound more open and organic. The 81-7X is especially clear in comparison to the others.
I will also post dedicated EMG standard vs. X series clips very soon, so stay tuned! Until then, check the updated shootout here and compare them with the others already: