The models

Where the pedals of the rig come from, their circuit simulated part by part and measured against the real ones, and the story of each.

Circuits, not imitations

A pedal in Robine Studio is not an effect trying to sound like the original: it is its circuit. Every resistor, capacitor, transistor and diode of the schematic is there, and the app works out, sample by sample, what the current does through them.

That changes how it plays. When you turn a knob, the same potentiometer moves in the circuit. When you roll back your guitar’s volume, the pedal cleans up like the real one, because its transistors see less signal. When you dig in, it saturates more, and in its own way.

Checked against real pedals

A circuit copied from a schematic can hide a mistake: a value misread, a wire in the wrong place. So every model goes on the bench. The same signals go through the model and through captures of real pedals (Neural Amp Modeler), set at several positions of their knobs, and we measure what differs: the frequency response, the way the pedal compresses, its harmonics, and what the ear hears on a real guitar take.

Each model gets a medal, from tin to platinum. It does not say whether the pedal sounds good, but how far it has been proved to be the real one:

Medal	What it says
Tin	The model runs, but its score is under 40: far from the reference simulator (ngspice), or far from the real pedals at the settings compared.
Bronze	The maths is right: it gives what ngspice gives. Nothing yet says it is the pedal.
Silver	Close to a real pedal at one setting.
Gold	Close at three different settings.
Platinum	Close at five different settings or more.

A setting counts only when it is close on its own: an error (pre-emphasised ESR) of −10 dB or better, and a PEAQ grade of −2 or better. Nor can the medal go past what the 0 to 100 score of all the measurements gives: bronze from 40, silver 60, gold 80, platinum 92. What comes from TONE3000 is a capture, not a circuit: no medal, but the TONE3000 mark.

And where a model still differs from the pedal, we say so, with what we know about it. A grade only goes up with a new measurement, never by nudging a value until the curves meet.

What you will find for each pedal

Its story: where it comes from, who played it, why people still look for it.
The variant chosen: a famous pedal has often had ten versions. We tell you which one is under your foot, and why that one.
Its circuit, as the app computes it.
The captures it was measured against, at which settings, and what they showed.
Its grade, and what is left to prove.

Every model of the app’s library has its own page. Below, they are under their category, in the order the library shows them, with what each is made of, a circuit’s grade and the first sentence of what the library says of it. Those not written up in full yet have a short page: the same facts and the library’s whole description.