Can someone clear this up please:
As I understand it, gtr amps have high impedance inputs around 1 meg ohm ---- Correct?
I assume that passive pickups are high impedance.
I also assume that pedals are also generally high impedance nowadays.
I assume therefore that signal degradation is minimised because the impedance is more or less the same throughout the chain.
What I can't understand is low impedance active pickups:
At which point is the impedance changed back to "high", so that the amp is being fed the correct signal?
I always understood that lo impedance circuits enabled the gtr signal to drive long chains of FX properly, but if pedals generally have hi impedance inputs, surely there's a mis-match?
I think I'm missing something