If you work in the professional audio field, you need to use balanced lines for long signal runs to prevent hum and noise pick-up. This Balanced/Unbalanced Converter is really two projects in one. It ...

Over the past couple of years, the Canadian audio company Radial Engineering has been expanding its compact and handy StageBug series of products. The Skinny: The latest addition to Radial’s StageBug ...

As the intro to this particular post, I’d like to requote a portion of September’s hands-on review of Pioneer’s XDP-02U portable audio player (the bolded emphasis is mine): Both unbalanced (complete ...

Balanced (differential) audio is carried as a differential signal on two wires, with no ground reference. This offers high common mode noise rejection. Unbalanced (single ended) signals are carried by ...

XLR is three pronged and eliminates some of the buzzing of RCA, that's all I know, although I'm interested in the topic.