Yes, Dekay. Different grounding paths and systems. One if for the electrical current feeding the the device and the other is for the line-level signal connecting the components. I have used cheater plugs for years with no problems. The second ground is extra insurance, but that does not mean that the first ground does not work. I live in New Orleans and uptown there are a lot of older house that use 2 prong outlets. Other than inconvience, I do not know of anyone who has had a problem. Most people are talking theory but in everyday use, I seriouly doubt anyone will report that they had an actual problem because of the lack of the second ground.
