@soix ...This is not very bright with your tired old theory crafting nonsense.
Name your glory featureless one knob preamp and brand (the more expensive the better, your main moneymaker with the magic sauce rubbed chinese caps and power supply), whatever you sell. Also, bring a blindfold with you.
DSP, rsc filters, etc prepro VS straight wire w/ gain crap knob turning... We’ll see if your knob wins.