Sda 2b?

[soupbone]

How many models of the SDA 2B were there? I'm finding some for sale but they have the same cabinet as the SDA 2A. I have seen pictures of the 2B that look the same as a 1C. Thanks for your help. Soupbone

[eeagle]

Check McGowan Bros. Polk/SDA Page. They have several pictures and an SDA "Family Tree":

http://groups.yahoo.com/group/mikespolkpage2/

My understanding is that the SDA-2b was produced from 87-89. The early ones lacked the pedestal base found on the later. Driver arrangement was the same however.