I could be wrong but it is my understanding that every test is performed using 1 watt. I believe it is an industry standard. I believe that the idea is how many db's and what spl and at what total harmonic distortion is a speaker while using 1 watt to produce sound. The higher the db rating at 1 watt, the more efficient the speaker and the less power you nees to drive it. There should be an industry standard for a THD percentage to create an even playing field for power ratings.
If that is right, some of you need to aquire a better understanding of the 1 watt thing from some of the answers. If the above is wrong, maybe someone could point us all to a good article explaing 1 watt testing.
