Self on Audio, 3rd Edition

Chapter 9A balanced view, Part II

(Electronics World, May 1997)

Intended title: The Technology of Balanced Interconnections Part II

In the second part of the article, I examined the various sorts of input stage and the various combinations of inputs and outputs. While there are an intriguing number of output stage types, for inputs there are only unbalanced, electronically balanced, and transformer-balanced versions to be considered.

Obviously, an article of reasonable length could not cover everything, and two important issues not ventilated were the desirability of a high Common-Mode Rejection Ratio (CMRR) in balanced inputs, and the problem that a basic electronically balanced input stage is much noisier than an unbalanced input stage, typically ...