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Impedance

Impedance describes opposition to an electrical audio signal and affects how devices connect.

Level relevance: introduced at Higher; tagged for every later level where the same concept remains useful.

Explanation

Correct impedance matching helps microphones, instruments, headphones, and inputs work as intended. Poor matching can affect level, tone, noise, or reliability.

Topics

HardwareSignal pathRecording
Curriculum statusofficial concept
Review statusdraft

Sources