Hi, thanks for the tip! I'll check it out. It was the second track from the planetary assault system and the A2 track from Judas. Similar type of really wide and nice basses is e.g. this: https://soundcloud.com/abyssrecordings/symmetry.
I kind of have an idea how that kind of sound is made, but what I don't know is how to make the sound pop like that. My sound usually gets too muddied. That's why I was thinking that it might be a stereo image thing, but I'm just wondering whether the stereo thing is done on just the reverb or on the whole kick reverb thing.