“If it was wrapped in a hardware shell and cost 12.000€ and blessed by Mr Weiss or Mr Massenburg, it'd be hailed as the best EQ in the world. Unironically, it's exactly what it is.”

Five bands interact through a circuit-modeled inductor network — boosting and cutting near the same frequency shapes sound an ordinary EQ can't.
Tubes and transformers solved as real circuits — the iron remembers how it just saturated and settles after a transient.
Link input and output to push the circuit harder while your comparison stays honest.