Root mean square (also known as RMS) is a measurement used to acquire the output values of the Power Outputs. It is also known as the most accurate way of garnering these measurements. The RMS is also known as the quadratic mean. In this case, it is used to measure amplifier power. It is used in conjunction with the electric efficiency of an electronic amplifier, and is a way to measure the ratio of mean (or average) output power to mean (or average) output power.
