I was perusing a website called Downtown Audio when I came across two BOSE products listed on their webpage that I was not familiar with. So, went over to the Bose homepage and looked for these products, they were on the Pro.Bose webpage for Bose "professional" products. What I found was very surprising, they actually listed useful specifications for almost all of their Pro audio products. BOSE PRO product list page PANARAY MA12 Modular Line Array PANARAY MB4 Modular Bass PANARAY 402 Series II PANARAY 802 Series III The speakers I listed are just a few with specs listed. I guess I am posting this because I am very surprised to find Bose listing any specs at all, considering what they tell consumers when questioned about the specifications of their speakers.