output impedance

Output impedance is the measure of how much an electronic device resists or opposes the flow of electrical current from its output to other connected equipment. Think of it like a check valve: a low output impedance allows the device to deliver more consistent power and respond well to varying loads, while high impedance can cause voltage drops and distort signal transfer. In audio and electronics, having a low output impedance ensures clear, undistorted signals, especially when connecting to different devices with varying input impedances. It's a key factor in maintaining signal integrity and performance.