PiraxaStudios
Member
While I do know that instruments and hi Z microphones have a high output impedance (same unit, Ω and resistance), and regular microphones use lower output impedances, this doesn't help me much in the world of outboard gear like compressors, EQs and preamps - all of which use open circuitry. I recognise that in these pieces of gear, there's going to be a low input impedance, and a high output impedance (measured the inputs and outputs of my TL-C1 valve compressor, and sure enough, ≈6kΩ on input, and ≈1MΩ on output).
What I don't understand though, is what part of a "black box" part of a unit's schematic stops being the input, and starts being the output. I have heard that it's down to what part of the circuit is active, but if that's the case then there will be loads of different input and output stages in something like a compressor, due to all the transistors and opamps in the signal path.
I can read schematics, but have a limited understanding of electronics having last done it at A-Level in school 10 years ago (and we never learnt anything about AC, so this will be fun)
What I don't understand though, is what part of a "black box" part of a unit's schematic stops being the input, and starts being the output. I have heard that it's down to what part of the circuit is active, but if that's the case then there will be loads of different input and output stages in something like a compressor, due to all the transistors and opamps in the signal path.
I can read schematics, but have a limited understanding of electronics having last done it at A-Level in school 10 years ago (and we never learnt anything about AC, so this will be fun)