the plot thickens for the worse, along with my disposition...
so i went home and pulled the power amp out, swapped in the TFM 35x, hooked the Sunfire pre to the TFM, hooked the speakers back up and turned the system back on. it sounded like 5hi7....
so I turned it down again...
...only to get a really nasty burnt smell out of the Sunfire Tube processor. No smoke or anything -- just that nasty acid burnt electronics smell.
unplugged everything again and am sitting here just seething. not only do I have a dead power amp but it smells like it probably took my pre-amp out with it. Either that or something in the pre went amiss and caused the power amp to short out. Either way both Sunfire units are borked.
The strangest part of all of this is that last night when the power amp went there was no smell at all out of either unit. just a quick but pronounced rumbling noise and then a flash/pop that my wife says she could see through the window to the joule meter. i can't make heads or tails of what happened here, but I guess it doesn't matter. time to bring the old silverface back down I guess.