yea when I walked into our local high end store which sells Klipsch, B&W McIntosch, Denon, Marantz etc. I was asking the salesman questions about the tweeter size in Rf line of Klipsch Speakers and he was spoutn all sorts of BS numbers, He was clueles. At least when I Sold GMC Trucks, Cadilacs, Saabs, and Pontiacs at a Dealership for some time and if a customer came in and needed to know the differential of a truck and ya didn't know it it would easily cost you a sale. Needless to say I new every, and I mean every car on that lot, as I walked it every morning to see what if any thinew had arrived plus constant training and research. How is it that these people can not at least know what is available on a spec sheet on a web site, after all this is their occupation. When droppin this kind of cash most of us want to make an informed and confident purchase.