Sorry for the late response on this, busy week.

OK so I really don't have much info on it, (that being the Supersonic). It was made in Hong Kong, has dual cassette and AM, FM, SW 1 and SW 2. I've never found another online and I got it while I was on a trip in New York. From the extensive research I've attempted on this one the most interesting thing I came up with is that it seems to be related to the Sigmatech ATP-510. It has the same configurations, i.e. the grill set up, knob placement etc. It is pretty loud and if I do say so myself looks pretty bada--! The gold accents are the major difference between the Sigmatech.