Welcome back hifiguy. Good to see you here again. And I can relate with health issues causing delays. I'm still trying to finish up a pair of Acoustic Research AR90s, that I recapped 5 years ago. Life gets in the way, I suppose.

Plus, I agree with Mark. Carefully turn everything on. Volume off/muted. Turn your source on first, followed by the preamp. Once they're warmed up, if possible, listen to music with headphones, to ensure everything sounds correct. Only after that, would I power up the amp. Then again, let the amp warm up and settle in, for at least half an hour. If all seems normal, and the amp temp isn't too hot, I'd proceed to give the speakers some volume. Low at first, then more if no issues are heard. It might take the speakers a bit to settle in too, as the caps may have to reform as well, after 15 years.
Hope everything works!
