The Another Brick solo was actually done straight into the board at Britannia Row with a Les Paul with P90s. The same trick Paul mention Nile does. They had an old MCI board at the time which was pretty distinctive too I think. Then it was supposedly reamped to give it the ambience.
But one thing I think causes confusion is with a basic compressor, including studio compressors, the controls are amount of compression, and make up gain, and that's it, and they have names that have only the vaguest association to what the compressor is doing. The next level you add in things like attack, which is how quickly the compressor engages, and release, or how long it holds peak down. Then with say an 1176 you get into ratios and stuff. To take a Dynacomp for example, it's Sensitivity and Output. Output, ok, that makes sense. Sensitivity? Is it going to buy you flowers and wine? It's just the amount of compression, but then let's move over to my favorite compressor, the Boss CS-2, you get three controls, Sustain, Attack and Level. Again, Level is pretty straight forward. Attack, if you know what it means, is as well as it's pretty standard. Sustain? No, it's just the amount of compression again. It isn't giving you anymore sustain than you have naturally, it's giving the illusion of more sustain by compressing the dynamic range from the top down, which you adjust back with the level dial to match the dry signal, making the note decay seem shallower and increasing the relative volume of the tail of the note. It's a play on psychoacoustics. But the way companies label these things is a huge source of confusion for people trying to figure them out.
I still have a dbx 166 to this day from that era.