As some of you may have looked at my Venue Acoustics thread and thought; "I wanted to know more about the actual gear, not just what the room is doing", this thread is all about live sound rigs – what used to be known as simply “the PA” when I started gigging back in the early 1970s. I’m also starting this in response to to the frustrations from a lot of players about their live sound. Some of this frustration comes from the complexities of the equipment itself, but often a major factor is a person referred to fondly as “the monkey behind the desk”, or worse. Hopefully, this thread will help whether you find yourself in a self-op situation, or negotiating with our simian friend in whose hands your fate rests. (Before anyone accuses me of being a complete hypocrite, I should admit I’ve been on both sides of this situation: as a live sound engineer for others and as a musician on stage saying: “Well I could turn down some more, but given I can’t hear a note I’m playing, I’m not sure how much further to go…” I’ve also been in the lucky position of being allowed to interview some truly great sound engineers, most of whom imparted their knowledge with considerable generosity. Let’s hope some of that wisdom has rubbed off.) This is a thread, not a seminar, so its shape and content is dictated by you, along with other forum members who chose to contribute. Although I’m working to a framework that progresses in a logical manner, I am happy to modify if you’d rather I get to a particular topic ‘sooner rather than later’.