Logical2Demo was an intermediate stage of Logical, transitioning between the original Logical with its convolution-based SSL color and Logical3 with its full set of controls made to work like familiar buss comps.
Logical2 had none of that, though it sounded good. It had only two controls, an input and output gain. It was about trying to make the plugin simpler and easier to approach, but I ended up doing that by more closely modeling the behavior of existing compressors.
If this version is the version of Logical you want, what you do is buy the current version and then email me asking for a copy of the older version. I’ll send it to you, as if you’d bought it back in 2013 when it came out.