I built the monoblock pair from the first round. I have them powering a 3 inch FR bookshelf from Tekton. (an older offering that I have not seen available of late)
Wonderful little amplifiers, running on a switching PSU.
I built one last Monday, took 5 hours taking my time, great little amp, pre is B1 Korg and it drives my Castle Howard S1 speakers with ease.
They are 92dB for 1w1m though.
Here are some non-studio quality pics of my little work office setup, which I mainly use for headphones (Focal Utopia) The headphones, and audio gear are directly to the right of the right speaker. I am particularly looking forward to Christmas music in my office while I wrap the kids presents, which is a yearly thing.