Dave, Gary used the older version of the 1502-4ohm Black Widow speaker, which had a paper cone and not the Kevlar cone. I know this as prior to Gary's death, I obtained a used paper cone 1502-4 ohm for his tweed covered steel cabinets.
We started manufacturing all BW's(except the 1501-4BW SB) with the KEVLAR cone in the early '90's. I personally haven't found the tonality of this material to perform well for steel. Therefore, that is the reason we went to painstaking measures to continue the paper coned 1501-4 ohm BW's for steel applications. However, we did revoice this model in approximately 1995.
Junior Knight also uses the 1502's, so you might want to get an opinion from him. I personally like the 1501-4 ohm paper cone BW's because of the smooth response, but each person has their own opinion.
By looking at a frequency response of the 1502-4DT BW KEVLAR speaker, you should hear an increase in the 2kHz. range. Again, the 1501-4ohm shallow basket(SB) paper cone is the only model that we now manufacture specifically for steel guitar applications. I'd say that it would be difficult to locate a new 1502-4 paper cone speaker. [This message was edited by Mike Brown on 08 November 2000 at 06:42 AM.]
