A customer reports “distortion” in a recently installed and calibrated audio system. What is the FIRST thing that should be done?

In audio systems, distortion can often be attributed to an imbalance in gain structure. By checking the gain structure of all audio signals, the technician can identify where the levels may be too high or too low, leading to distortion. This process involves ensuring that all components in the audio chain (such as microphones, mixers, processors, and amplifiers) are optimized for the appropriate level, preventing clipping or unwanted noise that can cause distortion.

Taking this initial step is crucial because it directly addresses the core of many audio issues. Correcting gain structure can often resolve distortion without the need for more drastic or time-consuming measures like replacing speakers, adjusting amplifier gain, or recalibrating echo cancellers. Once gain structure is properly managed, if distortion persists, further troubleshooting can be done. However, starting with the gain structure is a systematic and effective approach to identify and eliminate potential causes of distortion.