I have never heard of the synthesis speaker by CJ, but as far as CJ's keeping their speakers a secret that's very interesting.
I would very much like to learn more about the technical aspect of the SL-21, like who were the designers, were the folks at Sonographe, or the folks at CJ? What components did they use, and the crossover design?
My SL-21s front grills are long gone, however, my 1988 Audio magazine advertisment with the picture of the SL-21 didn't show any front grill, the Audio Annual Buyers Guide said the SL-21 grills were optional.
Can anyone tell me if your SL-21 came with front grills? If so, what do they look like, and are they easy to make?
I would very much like to learn more about the technical aspect of the SL-21, like who were the designers, were the folks at Sonographe, or the folks at CJ? What components did they use, and the crossover design?
My SL-21s front grills are long gone, however, my 1988 Audio magazine advertisment with the picture of the SL-21 didn't show any front grill, the Audio Annual Buyers Guide said the SL-21 grills were optional.
Can anyone tell me if your SL-21 came with front grills? If so, what do they look like, and are they easy to make?