I'm trying to understand input impedance defaults for the drive block. The real TS808 and SD-1, from what I've read, list an input impedance of 500K, but their models default to 1M and 230K. The Mesa Flux Drive lists 1M (minimum of 500K), but the model defaults to 230K. The Flux' minimum of 500K confuses me, because I thought pedals have a fix input impedance. Does anyone know if the input impedance changes depending on settings for certain pedals?
Do pedals typically measure pretty far off from the listed input impedance? If 500K is a common value for some popular overdrives, why would that be missing not only from Fractal's modelers, but also in modelers from other companies?
I'm not asking because I think this is a bug, but because I genuinely want to understand the logic here.