CEA-2010 Levels Subwoofer Playing FieldOrganization specifies how manufacturers test subwoofers and report specs
You look at all those A/V products specs, and the "numbers" look better for one of the products, but it sounds worse than the others.
What gives? Chalk it up to the evil ways of vendors, or just a general lack of standards, but manufacturers aren't comparing apples to apples when it comes to a number of products in the A/V category.
The Consumer Electronics Association is trying to change that, one product category at a time, starting with subwoofers.
The organization recently adopted CEA-2010, "Standard Method of Measurement for Powered Subwoofers," which provides specific test procedures for determining maximum Sound Pressure Level (SPL) output, and defines a ground plane test procedure and room correction factor. The standard also outlines reporting requirements for compliance with the standard.
Before CEA-2010, "There hasn't been a method to compare subwoofers from different manufacturers in an apples-to-apples way," says Charlie Hughes, president of Excelsior Audio Design & Services, LLC and chair of CEA's R3 Working Group 1 (WG1), which drafted the standard. "Consumers trying to interpret figures from two different manufacturers are in a quandary. The numbers may be the same, but they may sound completely different."Read the entire story here, with links to CEA's other standards initiatives