Issues with Blind-Testing Headphones and Speakers Reply #25 – 2014-08-19 14:40:59 Quote from: mzil on 2014-08-18 22:42:25In the late 80's/early 90's I was a Denon dealer and they were one of the top names in CD players back then. For some reason there was a top of the line unit we were throwing in the trash [because it had fallen from a shelf and had a bashed in corner, making it toast, for example]. Out of curiosity I dismantled the remains and discovered hidden away from view, completely obscured by the main internal circuit board, was a very thick metal slab of steel, a metal plate, much heavier than almost all other brands' entire CD design, heck it was even heavier than some of their own receivers. It wasn't attached to anything and served no electrical or heat dissipation purpose. I'm confident the sole purpose was to make the entire product's heft and "bulid quality" seem greater and served no other function.[I think it was the DCD-3300 or DCD-3000, IIRC, but I'm not 100% sure at this point.]Plus think of how many forum reviews of amps and receivers we've all read where they felt it to be useful to describe the unit's heft, which they note with some pride, as if that should convey to us something about its quality.I suppose one could be generous and assume that was a large mu-metal shield.