CEA2006 is the long-awaited rating standard that makes it easy for costumers to compare amplifiers. It defines characteristics that describe the performance of amplifiers designed for mobile applications and replaces the old standard EIA 517B.

According to the standard some specific ratings must appear on the package of the amplifier. The CEA-logo then declares that these specifications are accurate and comparable.

Since the two most fundamental qualities of an amplifier are how loud it will play and how good it will sound, the two principal ratings, according to CEA2006, are Output Power and Signal-to-Noise Ratio. These two quantities are the most significant indicators of an amplifier’s performance.

CEA offers a full description of the standard through Global Engineering Documents. Note that downloading the document is not a free service.
CEA Standards Catalog
Global Engineering Documents - CEA 2006 document