Resolving line check problems can be quick and easy when you use this three-step approach. It's simple, it follows a logical flow, and it can be done in a very short period of time. A line check is the process of checking that all instruments and microphones on the stage are sending signals to the sound board. This process happens before a sound check or might be considered part of the sound check. During a line check, you are apt to discover problems like bad cables, bad connections, dead [keep reading]