James (sovereign) built with a little help from a 40W/50W SECA the updated PCB are now ready for completion by the DIY's of us. The PCB have most of the components on them minus a few small ZTX653 transistors and the output and PSU devices. I Also have a few large (very large) heat sinks for this amp made for me all drilled and taped.
PCB are £150 each heat sink £90 each.
I also have the updated 20W SECA PCB part built for £80 each.