Is the preamp board for the STC-2A and STC-2P identical? Is it just the blend pot that is provided in the kit that is different? My question is based off of the posted diagram.

The reason I ask is, I want to get the STC-2P to use with my Apollo's, but if I decide to try some active's in the future, do I need to buy the whole new STC-2A kit? Or can I just swap out the blend pot?

Thanks all.

Click image for larger version Name: STC-2P.jpg Views: 0 Size: 59.3 KB ID: 6028404