Called my repair guy tonight ... he said the keyboard is fine -no connectivity problems ... checked my speaker cables - no problems ... so he put the speakers back on the bench and started jiggling cables, connections, whatever and at some point the power turned off ... he checked the connections for the power supply and found they were a little 'flimsy' ... he reworked the power supply connections on both speakers and they now work fine ... I will give them a good test over the weekend, but things should be good ...
thanks for all the well wishes ...
BTW ... I haven't touched the Kn6000 in ages (my bad) and going back to it in case I needed it next week was really strange ... now, I haven't spent more than a few minutes at it, but I couldn't quite remember how the heck I went seamlessly from one song to another ... I am thoroughly spoiled by the KORG Songbook feature ...