i hope I am not creating the idea either that I don't think any of these analog simulation processes are useful and everything should pass through the digital chain only. Far from it! We had to have all the great analog gear of the past in order for them to devise these wonderful VST's now that can emulate these things so well and they do.
Those who think the only way to get that analog sound is by using analog gear are simply wrong and deluding themselves. I have read so many reviews now where they A/B blind test the VST against the real deal with a room full of great ears and switch 20 times and like no one picks it. What does that mean? It means we are emulating analog gear very well and I mean
well. I am an old analog synth man from way back, owned several Oberheim beasts. Don't have any now. Got the OPX Oberheim VST and to be honest it sounds so good it is rude! If they can do that they can do anything. That is a tough instrument to copy. It has a very unique sound.
Just mastered a really nice album and used the Pultec EQ on it. Just sounds stellar. Everything that comes out the end of that just sounds cool. Period!
I think it's great that we have total control now. In the old days
everything was recorded onto tape,
everything was mixed on the same mixer channels,
everything was sent to the same outboard gear. Now we can have a blend of total transparent digital sound on some things, others going through a Harrison mixer, others getting some Neve action some things getting a little tape sim and so on. An all analog system simply cannot do this and for that reason alone it is inferior.
All I am saying is think carefully about what things you are going to send where and what processing you really need here or there. That is all. And the great thing is if it is all going pear shaped, strip it all off and start digitally again and work from there. I still find though that I don't use that much analog processing compared to the number of tracks that are only receiving digital attention these days. ie straight through to the stereo master through maybe a simple (bundled) EQ and some dynamics at best.