As the name suggests, this vintage-style EQ forces you to use your ears rather than your eyes.
It has 4 bands (LowShelf, LowMid, HighMid, HighShelf), but each knob is blind. There are no indicators or numbers to show frequency values, gain values or Q values. You have to use your ears\n\n“If I were King of the Universe, consoles would have no indication of frequency near the EQ knobs, because when you show the frequency, then most people EQ by eye. […]\nBut seriously, you should have no idea of what frequency you are boosting or cutting. It doesn’t matter what number is. It matters how it sounds and how it feels. That’s it!”\n\n-- Matt Wallace.