Thanks for the heads up!
But damn, I did not see the reply until Monday morning. Anyway, I could not have made it last Saturday morning.
It does occur to me that with all of the possible configurations resulting from the choice of cables, cases, connectors, and other tweaks, it is hard to say what effect these will all have on the sound of the amplifier and that there is possibly no one reference product in any event. It would be interesting if someone has compared different builds and heard significant variations.