GFP-750 - blue v. red circuit boards


Recently, I have seen a couple of posts and ads that talk about the Adcom GFP-750 with the preferred blue (v. red) circuit board, but never an explanation for why it's preferred. What makes this model preferred?

Bob R.
rmrobinson1957

Showing 1 response by koiman

I also have a GFP 750 and my results are the same as Elizabeth.. I looked throught the top vent holes in my unit and the board is Blue.