From reading this and other threads with the power output from Sprog 3’s I’m beginning to think there is a wide variety of power supplies sold with them. Mine came with a 12.2 volt .5 amp supply. Others have had 13 volt and 14 volt with various amperages. I put a 15 volt on mine and it works fine. It’s overpowered for a programming track, but it works. I’m going to have to try changing the “CV Write Sound Feedback” and see if that works. Thanks.
Mike Heintzman