Kind thanks to all; particularly to Peter of Pbnaudio for the photos and explanations. I do remember now that the relays for phase switching were a noteworthy feature in the literature for the DMC20. I have zero tech savvy and a high respect for the design and build of my Spectral. I would prefer not to incur the risk of shipping to Spectral but have no idea of how to find someone in Vancouver,BC or perhaps as far away as Seattle, who could replace the relay 'if' I can obtain a part from Spectral.
I was very lucky (thanks to kind advice from Michael Percy, the well known and highly respected parts supplier) to obtain my Spectral DMC120 and DMA180 and early MIT i/c's and speaker cables as a result of an insurance settlement from a break in. Otherwise the cost was prohibitive. They have provided "exquisite" enjoyment for about 20 years now and power conditioning improvements from Equitech,MIT and Sound Application have yielded such dramatic refinements I remain satisfied with these treasures and wish to keep them impeccable. Aha! I'm here convincing myself I'd best return it to the good folks at Spectral! Yes; thanks to your inputs I believe I have come to the best decision. Cheers to our great group here at Audiogon!
