The term impedance may be thought of as AC resistance or resistance under signal conditions.
Good matching is obtained when the output of a signal source is connected to an input having a suitably high input impedance, such that no degradation to signal level or frequency response occurs. From an electrical standpoint, optimal interfacing is referred to as 'matching'. Understanding what is meant by source impedance is essential when deciding how to interface various equipment. This month, I'm going to be looking at some more important aspects of studio design and construction, showing you how to deal with all the different signal types in your studio, and how to plan a successful wiring scheme which minimises problems such as earth loops.
However, with a little understanding and some careful planning, these gremlins can be successfully eliminated.īack in SOS September 2002, I introduced the whole subject of studio installation with a discussion of basic working practice and a guide to soldering techniques. Suffering from signal degradation or mains hum on your audio lines? The chances are that you're having problems with impedance matching or earth loops.
