SDA 2B crossover boards...

I have a pair of 4th gen speakers with the BE1807 B boards in them and found a pair of boards that are BE1807 A. Is there any difference in these two that would prevent me from doing the cap upgrade and just switching them out?
Answers
Regardless, you are much better off replacing the original boards with Gimpod's custom SDA crossover boards.
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk
You are still much better off using the larger and far superior Gimpod boards. Film/foil caps are considerably larger than the stock caps.
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk
Here's a pic of Gimpods boards with the 2BTL upgrade....extremely well laid out. Cannot recommend enough.
Here is a link to the Gimpod site for some more information.
http://www.gimpod.com/partsp2b.html