I think I think AES stands for Audio Engineering Socity, but I have never seen this listed as a wattage specification. RMS means Root Mean Square, and is used to denote the “average” power indication for sine wave. This value normalizes the wattage to something closer to the DC equivelant value of the AC wave which naturally rises and falls whereas DC would be steady state. Basically shows a more real world comparison value for power output.
Difference between " AES " and " RMS " power of a driver.
What is the difference between AES and RMS power of a driver?