Conrad Johnson CAV 50

I would agree with that pretty much though I prefer the KT77 to the 6CA7 in my system. I had JJ 6CA7's still have them around as backups. I did also just put in a new quad of Psvane Philips Holland Metal Base EL-34's and they are quite good a bit more top end and maybe a touch more transparent than the KT-77's another nice tube. A bit pricey at $330 but I managed to pick up a "new" used quad for $250.

Jond, a little trust would not be misplaced. After all, I had the CAV50 and, as mentioned, owned most CJ tube gear.
"control amplifier" is how marketing people tried to differentiate it from an integrated amp. 

rolyasm, has your CAV50 been diagnosed yet?

Jazz no mistrust was implied or intended dude I promise! And yes Roly any updates?

It has been a crazy holiday season for us. Finally just decided to stop trying to research all of the other tubes as well and just ordered some  JJ E34L's. I was up late last night trying to find some 12au7 and 12ax7, but started getting pricey since I don't know if the amp will need a major overhaul yet and I read that if I send in the amp for upgrades, often times they replace your tubes for you. So, waiting to buy other tubes but the EL34's should be here shortly and I'll see what they do. I am not hopeful it will fix the problem and not looking forward to shipping that beast to C&J.  I noticed some fuses (auto looking, blade-type) under the hood and behind the EL34's, so maybe I'll take a look at those today and make sure they aren't blown. 
If I keep the amp, which I probably will, I need to start looking for a great pair of speakers for them. I know Klipsch are super efficient, but typically too bright for me. I have seen several reviews and blogs about good speakers for them, so I'll probably start that search as soon as I test the EL 34's. $$$$$ It's always about the cash. Boo for not being rich. haha.
 You all have been very helpful. I'll keep you updated.

The tubes arrived, I installed them, let them warm for an hour, biased, then turned on some music. And.....the problem may be fixed. So, interesting thing when taking out the old tubes. All of the tubes had no markings on them but one, which read EL34G. That tube was in the paired channel where I was having the problem, though in a different socket. I only change the "bad socket" with another tube from the other channel, but never changed out that EL34G tube. It seems strange that a neighbor tube, in the same channel, could have been causing the bias light to light up and stay on its sibling tube, but that seems to be the case. So... now I have to find some amazing speakers to try out. Any suggestions for something that isn't super bright, has a high sensitivity and doesn't cost over, say $800? I know that isn't a huge budget. Thanks again for all your help. I have the old RBH speakers hooked up now and the sound pretty good. I have a call into RBH and have sent them pics so they can give me the model number and specs. They are old. No markings. I'll keep you posted.