Guest Tinnitus Posted November 21, 2007 Report Share Posted November 21, 2007 I have some Allison CD6's, serial numbers F-3975X, that I would like to get an approximate build date on, if anyone has the info.I also have a general question: the CD6's look very similar to the Sixes. Are there differences between the two - and does anyone know what the differences are? Which are more "desirable"?Thanks!! Link to comment Share on other sites More sharing options...
JeffS Posted November 22, 2007 Report Share Posted November 22, 2007 I have some Allison CD6's, serial numbers F-3975X, that I would like to get an approximate build date on, if anyone has the info.I also have a general question: the CD6's look very similar to the Sixes. Are there differences between the two - and does anyone know what the differences are? Which are more "desirable"?Thanks!!I believe that the differences are mostly cosmetic. The front panel of the Allison:Six had the tweeter mounted on a black panel and covered by a square grill that extended to the cabinet edges. They may have only been available with a vinyl wrap, though I'm not 100% sure on that. They also had a two position high frequency adjustment on the rear.As you know, the CD-6 has a wood veneer finish, a somewhat oval shaped tweeter grill, and no high frequency adjustment.It came in at least two finishes (I have both an oak and a walnut pair).I've never heard the original, but it looks like the drivers are the same in both models and if I had to guess I'd say that they both sound the same (assuming that the high frequency switch is in a position to match the CD-6 response). Link to comment Share on other sites More sharing options...
JeffS Posted November 22, 2007 Report Share Posted November 22, 2007 I have some Allison CD6's, serial numbers F-3975X, that I would like to get an approximate build date on, if anyone has the info.I also have a general question: the CD6's look very similar to the Sixes. Are there differences between the two - and does anyone know what the differences are? Which are more "desirable"?Thanks!!I'm sorry, I forgot to answer the build date question. The original model six was tested by Stereo Review in June 1981. The CD-7 was tested by Stereo Review in Jan 1983 and had the new cabinet design. In May 1985, they tested the CD-8, so it appears that Allison stayed with the CD style cabinet from at least 1983-1985. Hope that helps. Link to comment Share on other sites More sharing options...
Guest Tinnitus Posted November 26, 2007 Report Share Posted November 26, 2007 I'm sorry, I forgot to answer the build date question. The original model six was tested by Stereo Review in June 1981. The CD-7 was tested by Stereo Review in Jan 1983 and had the new cabinet design. In May 1985, they tested the CD-8, so it appears that Allison stayed with the CD style cabinet from at least 1983-1985. Hope that helps.Jeff, thanks for the info. Link to comment Share on other sites More sharing options...
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