Help/Major Problem

most likely a tube problem. if you have extras, switch them in. good luck.

If you have any spare stuff laying around like an extra integrated or something you can hook to the Pass and see if you can eliminate it from suspect. Follow the signal flow and don't doubt that it could be a cable. I had a situation where I had a low signal in one channel, I was going nuts and it turned out to be an interconnect cable. I didn't know until I substituted another set for the faulty set.

If you're inside the Rogue look for an internal fuse. Glowing tubes mean the filaments are getting the voltage they need but there should be additional power supply voltages present as well to do the amplification.

Any chance one or more of your sources has a volume control that you would dare connect a source direct to the Pass? At least you could start to narrow the problem to one component.

Try to remain rational. More than likely you are just a tube or tube plus internal fuse away from pleasureable music again.

You may have somehow triggered the thermals on the Aleph 3. Since it's class A, you no doubt have noted that it always runs hot. This may have inhibited a thermal reset. Try turning it off, letting it cool, then trying again. Good luck!

Make sure that both rear power connectors are properly seated. And if you own headphones, you could try them in the headphone jack -- if the phones work properly then most likely the problem is not in the preamp.