Explain impedence matching please


Can someone explain to me how to match impedance when considering an amp and a pre? Like, for instance, if a pre has an output impedance of 800 ohms, and the amp has an input impedance of 200K, what does that mean as far as matching?
arafel

Showing 1 response by atmasphere

The general rule of thumb is that the preamp have 1/10 the output impedance with respect to the input impedance of the amplifier. It should not exceed that value at all audio frequencies. In the case you describe above, no worries.